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.

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 785 pages on Saturday, how many pages were left unread

Answer:_______________

Ponnalagu read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 420 pages on Saturday, how many pages were left unread

Answer:_______________

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 240 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 420 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 300 pages on Saturday, how many pages were left unread

Answer:_______________

Amutha read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 800 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 400 pages on Saturday, how many pages were left unread

Answer:_______________

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 600 pages on Saturday, how many pages were left unread

Answer:_______________

Haritha read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 648 pages on Saturday, how many pages were left unread

Answer:_______________

10)

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 345 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 785 pages on Saturday, how many pages were left unread
Answer: 1099

SOLUTION 1 :

$785

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 = 785

1 unit = 785 ÷ 5
= 157

Step 4 : 7 units = 7 x 157

= 1099

1099 pages were left unread.

Ponnalagu read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 420 pages on Saturday, how many pages were left unread
Answer: 84

SOLUTION 1 :

$420

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 = 420

1 unit = 420 ÷ 10

= 42

Step 4 : 2 units = 2 x 42

= 84

84 pages were left unread.

Chithra read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 240 pages on Saturday, how many pages were left unread

Answer: 210

SOLUTION 1 :

$240

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 = 240

1 unit = 240 ÷ 8

= 30

Step 4 : 7 units = 7 x 30

= 210

210 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 420 pages on Saturday, how many pages were left unread
Answer: 588

SOLUTION 1 :

$420

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 = 420

1 unit = 420 ÷ 5
= 84

Step 4 : 7 units = 7 x 84

= 588

588 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 300 pages on Saturday, how many pages were left unread
Answer: 60

SOLUTION 1 :

$300

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 = 300

1 unit = 300 ÷ 10

= 30

Step 4 : 2 units = 2 x 30

= 60

60 pages were left unread.

Amutha read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 800 pages on Saturday, how many pages were left unread

Answer: 700

SOLUTION 1 :

$800

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 = 800

1 unit = 800 ÷ 8

= 100

Step 4 : 7 units = 7 x 100

= 700

700 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 400 pages on Saturday, how many pages were left unread
Answer: 560

SOLUTION 1 :

$400

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 = 400

1 unit = 400 ÷ 5
= 80

Step 4 : 7 units = 7 x 80

= 560

560 pages were left unread.

Savithri read $\frac{2}{3}$ of a book on Saturday and $\frac{1}{5}$ of it on Sunday. If she read 600 pages on Saturday, how many pages were left unread
Answer: 120

SOLUTION 1 :

$600

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 = 600

1 unit = 600 ÷ 10

= 60

Step 4 : 2 units = 2 x 60

= 120

120 pages were left unread.

Haritha read $\frac{2}{5}$ of a book on Saturday and $\frac{1}{4}$ of it on Sunday. If she read 648 pages on Saturday, how many pages were left unread

Answer: 567

SOLUTION 1 :

$648

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 = 648

1 unit = 648 ÷ 8

= 81

Step 4 : 7 units = 7 x 81

= 567

567 pages were left unread.

10)

Alicia read $\frac{1}{4}$ of a book on Saturday and $\frac{2}{5}$ of it on Sunday. If she read 345 pages on Saturday, how many pages were left unread
Answer: 483

SOLUTION 1 :

$345

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 = 345

1 unit = 345 ÷ 5
= 69

Step 4 : 7 units = 7 x 69

= 483

483 pages were left unread.