Sasi Math (Revised for 1024)

Scroll:Fractions >> Multiplication >> ps (379)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.

Tamilselvi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 368 pages on Saturday, how many pages were left unread

Answer:_______________

Tulasi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 830 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread

Answer:_______________

Keerthi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 608 pages on Saturday, how many pages were left unread

Answer:_______________

Selvanayaki read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 125 pages on Saturday, how many pages were left unread

Answer:_______________

Savithri read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 288 pages on Saturday, how many pages were left unread

Answer:_______________

Keerthi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 480 pages on Saturday, how many pages were left unread

Answer:_______________

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 280 pages on Saturday, how many pages were left unread

Answer:_______________

10)

Ramani read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 632 pages on Saturday, how many pages were left unread

Answer:_______________

Tamilselvi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 368 pages on Saturday, how many pages were left unread

Answer: 322

SOLUTION 1 :

$368

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 368

1 unit = 368 ÷ 8

= 46

Step 4 : 7 units = 7 x 46

= 322

322 pages were left unread.

Tulasi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 830 pages on Saturday, how many pages were left unread
Answer: 166

SOLUTION 1 :

$830

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 830

1 unit = 830 ÷ 10

= 83

Step 4 : 2 units = 2 x 83

= 166

166 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread
Answer: 686

SOLUTION 1 :

$490

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 490

1 unit = 490 ÷ 5
= 98

Step 4 : 7 units = 7 x 98

= 686

686 pages were left unread.

Keerthi read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 608 pages on Saturday, how many pages were left unread

Answer: 532

SOLUTION 1 :

$608

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 608

1 unit = 608 ÷ 8

= 76

Step 4 : 7 units = 7 x 76

= 532

532 pages were left unread.

Selvanayaki read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 490 pages on Saturday, how many pages were left unread
Answer: 98

SOLUTION 1 :

$490

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 490

1 unit = 490 ÷ 10

= 49

Step 4 : 2 units = 2 x 49

= 98

98 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 125 pages on Saturday, how many pages were left unread
Answer: 175

SOLUTION 1 :

$125

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 125

1 unit = 125 ÷ 5
= 25

Step 4 : 7 units = 7 x 25

= 175

175 pages were left unread.

Savithri read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 288 pages on Saturday, how many pages were left unread

Answer: 252

SOLUTION 1 :

$288

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 288

1 unit = 288 ÷ 8

= 36

Step 4 : 7 units = 7 x 36

= 252

252 pages were left unread.

Keerthi read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 480 pages on Saturday, how many pages were left unread
Answer: 96

SOLUTION 1 :

$480

Sunday

Left

Step 1 : $\frac{2}{3}$ + $\frac{1}{5}$ = $\frac{10}{15}$ + $\frac{3}{15}$

= $\frac{13}{15}$

Step 2 : $\frac{15}{15}$ - $\frac{13}{15}$ = $\frac{2}{15}$ (left)

Step 3 : 10 units = 480

1 unit = 480 ÷ 10

= 48

Step 4 : 2 units = 2 x 48

= 96

96 pages were left unread.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 280 pages on Saturday, how many pages were left unread
Answer: 392

SOLUTION 1 :

$280

Sunday

Left

Step 1: $\frac{1}{4}$ + $\frac{2}{5}$ = $\frac{5}{20}$ + $\frac{8}{20}$ = $\frac{13}{20}$

Step 2: $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 5 units = 280

1 unit = 280 ÷ 5
= 56

Step 4 : 7 units = 7 x 56

= 392

392 pages were left unread.

10)

Ramani read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 632 pages on Saturday, how many pages were left unread

Answer: 553

SOLUTION 1 :

$632

Sunday

Left

Step 1 : $\frac{2}{5}$ + $\frac{1}{4}$ = $\frac{8}{20}$ + $\frac{5}{20}$

= $\frac{13}{20}$

Step 2 : $\frac{20}{20}$ - $\frac{13}{20}$ = $\frac{7}{20}$

Step 3 : 8 units = 632

1 unit = 632 ÷ 8

= 79

Step 4 : 7 units = 7 x 79

= 553

553 pages were left unread.