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.

Barathan and Ovini 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 65 $\frac{km}{h.}$
What was Ovini’s driving speed
$\frac{km}{h}$

Answer:_______________

Pugal and Pavi started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 405 km apart. Pugal’s average speed was 65 $\frac{km}{h.}$
What was Pavi’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

Aravindh and Poongodi started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 270 km apart. Aravindh’s average speed was 65 $\frac{km}{h.}$
What was Poongodi’s driving speed
$\frac{km}{h}$

Answer:_______________

Karna and Poovazhagi started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 500 km apart. Karna’s average speed was 60 $\frac{km}{h.}$
What was Poovazhagi’s driving speed
$\frac{km}{h}$

Answer:_______________

Anand and Chithra started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 390 km apart. Anand’s average speed was 65 $\frac{km}{h.}$
What was Chithra’s driving speed
$\frac{km}{h}$

Answer:_______________

Prem and Indra started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 230 km apart. Prem’s average speed was 60 $\frac{km}{h.}$
What was Indra’s driving speed
$\frac{km}{h}$

Answer:_______________

Pugal and Swathi started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 190 km apart. Pugal’s average speed was 50 $\frac{km}{h.}$
What was Swathi’s driving speed
$\frac{km}{h}$

Answer:_______________

Balaji and Pavi started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 360 km apart. Balaji’s average speed was 60 $\frac{km}{h.}$
What was Pavi’s driving speed
$\frac{km}{h}$

Answer:_______________

10)

Sriram and Amutha started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 380 km apart. Sriram’s average speed was 45 $\frac{km}{h.}$
What was Amutha’s driving speed
$\frac{km}{h}$

Answer:_______________

SOLUTION 1 :

← Barathan	Ovini →

Starting Point

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

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

Step 3:	Ovini's speed	→	180 km ÷ 4 h
		=	45 $\frac{km}{h}$

SOLUTION 1 :

← Pugal	Pavi →

Starting Point

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

Step 2:	Distance travelled by Pavi after 3 hours	→	405 km - 195 km
		=	210 km

Step 3:	Pavi's speed	→	210 km ÷ 3 h
		=	70 $\frac{km}{h}$

SOLUTION 1 :

← Karna	Amutha →

Starting Point

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

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

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

SOLUTION 1 :

← Aravindh	Poongodi →

Starting Point

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

Step 2:	Distance travelled by Poongodi after 2 hours	→	270 km - 130 km
		=	140 km

Step 3:	Poongodi's speed	→	140 km ÷ 2 h
		=	70 $\frac{km}{h}$

SOLUTION 1 :

← Karna	Poovazhagi →

Starting Point

Step 1:	Distance travelled by Karna after 4 hours	→	4 h x 60 $\frac{km}{h}$
		=	240 km

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

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

SOLUTION 1 :

← Anand	Chithra →

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 Chithra after 3 hours	→	390 km - 195 km
		=	195 km

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

SOLUTION 1 :

← Prem	Indra →

Starting Point

Step 1:	Distance travelled by Prem after 2 hours	→	2 h x 60 $\frac{km}{h}$
		=	120 km

Step 2:	Distance travelled by Indra after 2 hours	→	230 km - 120 km
		=	110 km

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

SOLUTION 1 :

← Pugal	Swathi →

Starting Point

Step 1:	Distance travelled by Pugal after 2 hours	→	2 h x 50 $\frac{km}{h}$
		=	100 km

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

Step 3:	Swathi's speed	→	90 km ÷ 2 h
		=	45 $\frac{km}{h}$

SOLUTION 1 :

← Balaji	Pavi →

Starting Point

Step 1:	Distance travelled by Balaji after 3 hours	→	3 h x 60 $\frac{km}{h}$
		=	180 km

Step 2:	Distance travelled by Pavi after 3 hours	→	360 km - 180 km
		=	180 km

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

10)

SOLUTION 1 :

← Sriram	Amutha →

Starting Point

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

Step 2:	Distance travelled by Amutha after 4 hours	→	380 km - 180 km
		=	200 km

Step 3:	Amutha's speed	→	200 km ÷ 4 h
		=	50 $\frac{km}{h}$