Sasi Math (Revised for 1024)

Scroll:Distance, Time and Speed >> Distance, Time & Speed >> ps (646)

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.

Murugan and Selvanayaki started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 200 km apart. Murugan’s average speed was 45 $\frac{km}{h.}$
What was Selvanayaki’s driving speed
$\frac{km}{h}$

Answer:_______________

Chidambaram and Mithra started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 190 km apart. Chidambaram’s average speed was 45 $\frac{km}{h.}$
What was Mithra’s driving speed
$\frac{km}{h}$

Answer:_______________

Pugal and Parveen started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 420 km apart. Pugal’s average speed was 50 $\frac{km}{h.}$
What was Parveen’s driving speed
$\frac{km}{h}$

Answer:_______________

Balaji and Jeevini started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 440 km apart. Balaji’s average speed was 45 $\frac{km}{h.}$
What was Jeevini’s driving speed
$\frac{km}{h}$

Answer:_______________

Barathan and Poongodi started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 440 km apart. Barathan’s average speed was 55 $\frac{km}{h.}$
What was Poongodi’s driving speed
$\frac{km}{h}$

Answer:_______________

Sriram and Chithra started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 500 km apart. Sriram’s average speed was 65 $\frac{km}{h.}$
What was Chithra’s driving speed
$\frac{km}{h}$

Answer:_______________

Balaji and Panimalar started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 330 km apart. Balaji’s average speed was 50 $\frac{km}{h.}$
What was Panimalar’s driving speed
$\frac{km}{h}$

Answer:_______________

Balaji and Savithri started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 345 km apart. Balaji’s average speed was 50 $\frac{km}{h.}$
What was Savithri’s driving speed
$\frac{km}{h}$

Answer:_______________

Raj and Savithri started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 250 km apart. Raj’s average speed was 65 $\frac{km}{h.}$
What was Savithri’s driving speed
$\frac{km}{h}$

Answer:_______________

10)

Anand and Kumutha started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 345 km apart. Anand’s average speed was 65 $\frac{km}{h.}$
What was Kumutha’s driving speed
$\frac{km}{h}$

Answer:_______________

SOLUTION 1 :

← Murugan	Selvanayaki →

Starting Point

Step 1:	Distance travelled by Murugan after 2 hours	→	2 h x 45 $\frac{km}{h}$
		=	90 km

Step 2:	Distance travelled by Selvanayaki after 2 hours	→	200 km - 90 km
		=	110 km

Step 3:	Selvanayaki's speed	→	110 km ÷ 2 h
		=	55 $\frac{km}{h}$

SOLUTION 1 :

← Chidambaram	Mithra →

Starting Point

Step 1:	Distance travelled by Chidambaram after 2 hours	→	2 h x 45 $\frac{km}{h}$
		=	90 km

Step 2:	Distance travelled by Mithra after 2 hours	→	190 km - 90 km
		=	100 km

Step 3:	Mithra's speed	→	100 km ÷ 2 h
		=	50 $\frac{km}{h}$

SOLUTION 1 :

← Pugal	Parveen →

Starting Point

Step 1:	Distance travelled by Pugal after 4 hours	→	4 h x 50 $\frac{km}{h}$
		=	200 km

Step 2:	Distance travelled by Parveen after 4 hours	→	420 km - 200 km
		=	220 km

Step 3:	Parveen's speed	→	220 km ÷ 4 h
		=	55 $\frac{km}{h}$

SOLUTION 1 :

← Balaji	Jeevini →

Starting Point

Step 1:	Distance travelled by Balaji after 4 hours	→	4 h x 45 $\frac{km}{h}$
		=	180 km

Step 2:	Distance travelled by Jeevini after 4 hours	→	440 km - 180 km
		=	260 km

Step 3:	Jeevini's speed	→	260 km ÷ 4 h
		=	65 $\frac{km}{h}$

SOLUTION 1 :

← Barathan	Poongodi →

Starting Point

Step 1:	Distance travelled by Barathan after 4 hours	→	4 h x 55 $\frac{km}{h}$
		=	220 km

Step 2:	Distance travelled by Poongodi after 4 hours	→	440 km - 220 km
		=	220 km

Step 3:	Poongodi's speed	→	220 km ÷ 4 h
		=	55 $\frac{km}{h}$

SOLUTION 1 :

← Sriram	Chithra →

Starting Point

Step 1:	Distance travelled by Sriram after 4 hours	→	4 h x 65 $\frac{km}{h}$
		=	260 km

Step 2:	Distance travelled by Chithra after 4 hours	→	500 km - 260 km
		=	240 km

Step 3:	Chithra's speed	→	240 km ÷ 4 h
		=	60 $\frac{km}{h}$

SOLUTION 1 :

← Balaji	Panimalar →

Starting Point

Step 1:	Distance travelled by Balaji after 3 hours	→	3 h x 50 $\frac{km}{h}$
		=	150 km

Step 2:	Distance travelled by Panimalar after 3 hours	→	330 km - 150 km
		=	180 km

Step 3:	Panimalar's speed	→	180 km ÷ 3 h
		=	60 $\frac{km}{h}$

SOLUTION 1 :

← Balaji	Savithri →

Starting Point

Step 1:	Distance travelled by Balaji after 3 hours	→	3 h x 50 $\frac{km}{h}$
		=	150 km

Step 2:	Distance travelled by Savithri after 3 hours	→	345 km - 150 km
		=	195 km

Step 3:	Savithri's speed	→	195 km ÷ 3 h
		=	65 $\frac{km}{h}$

SOLUTION 1 :

← Raj	Savithri →

Starting Point

Step 1:	Distance travelled by Raj after 2 hours	→	2 h x 65 $\frac{km}{h}$
		=	130 km

Step 2:	Distance travelled by Savithri after 2 hours	→	250 km - 130 km
		=	120 km

Step 3:	Savithri's speed	→	120 km ÷ 2 h
		=	60 $\frac{km}{h}$

10)

SOLUTION 1 :

← Anand	Kumutha →

Starting Point

Step 1:	Distance travelled by Anand after 3 hours	→	3 h x 65 $\frac{km}{h}$
		=	195 km

Step 2:	Distance travelled by Kumutha after 3 hours	→	345 km - 195 km
		=	150 km

Step 3:	Kumutha's speed	→	150 km ÷ 3 h
		=	50 $\frac{km}{h}$