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.

Pugal and Savithri started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 230 km apart. Pugal’s average speed was 65 $\frac{km}{h.}$
What was Savithri’s driving speed
$\frac{km}{h}$

Answer:_______________

Karna and Tulasi started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 220 km apart. Karna’s average speed was 55 $\frac{km}{h.}$
What was Tulasi’s driving speed
$\frac{km}{h}$

Answer:_______________

Anand and Poovazhagi started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 440 km apart. Anand’s average speed was 50 $\frac{km}{h.}$
What was Poovazhagi’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

Balaji and Haritha started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 210 km apart. Balaji’s average speed was 55 $\frac{km}{h.}$
What was Haritha’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

Anand and Thamarai started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 480 km apart. Anand’s average speed was 65 $\frac{km}{h.}$
What was Thamarai’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

Sriram and Pavi started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 220 km apart. Sriram’s average speed was 45 $\frac{km}{h.}$
What was Pavi’s driving speed
$\frac{km}{h}$

Answer:_______________

10)

Karna and Panimalar started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 300 km apart. Karna’s average speed was 50 $\frac{km}{h.}$
What was Panimalar’s driving speed
$\frac{km}{h}$

Answer:_______________

SOLUTION 1 :

← Pugal	Savithri →

Starting Point

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

Step 2:	Distance travelled by Savithri after 2 hours	→	230 km - 130 km
		=	100 km

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

SOLUTION 1 :

← Karna	Tulasi →

Starting Point

Step 1:	Distance travelled by Karna after 2 hours	→	2 h x 55 $\frac{km}{h}$
		=	110 km

Step 2:	Distance travelled by Tulasi after 2 hours	→	220 km - 110 km
		=	110 km

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

SOLUTION 1 :

← Anand	Poovazhagi →

Starting Point

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

Step 2:	Distance travelled by Poovazhagi after 4 hours	→	440 km - 200 km
		=	240 km

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

SOLUTION 1 :

← Karna	Thamarai →

Starting Point

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

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

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

SOLUTION 1 :

← Balaji	Haritha →

Starting Point

Step 1:	Distance travelled by Balaji after 2 hours	→	2 h x 55 $\frac{km}{h}$
		=	110 km

Step 2:	Distance travelled by Haritha after 2 hours	→	210 km - 110 km
		=	100 km

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

SOLUTION 1 :

← Kalai	Mithra →

Starting Point

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

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

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

SOLUTION 1 :

← Anand	Thamarai →

Starting Point

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

Step 2:	Distance travelled by Thamarai after 4 hours	→	480 km - 260 km
		=	220 km

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

SOLUTION 1 :

← Selvan	Tamilselvi →

Starting Point

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

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

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

SOLUTION 1 :

← Sriram	Pavi →

Starting Point

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

Step 2:	Distance travelled by Pavi after 2 hours	→	220 km - 90 km
		=	130 km

Step 3:	Pavi's speed	→	130 km ÷ 2 h
		=	65 $\frac{km}{h}$

10)

SOLUTION 1 :

← Karna	Panimalar →

Starting Point

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

Step 2:	Distance travelled by Panimalar after 3 hours	→	300 km - 150 km
		=	150 km

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