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.

Karna and Haritha started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 200 km apart. Karna’s average speed was 55 $\frac{km}{h.}$
What was Haritha’s driving speed
$\frac{km}{h}$

Answer:_______________

Chidambaram and Pavi started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 375 km apart. Chidambaram’s average speed was 55 $\frac{km}{h.}$
What was Pavi’s driving speed
$\frac{km}{h}$

Answer:_______________

Narayanan and Chellamal started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 220 km apart. Narayanan’s average speed was 50 $\frac{km}{h.}$
What was Chellamal’s driving speed
$\frac{km}{h}$

Answer:_______________

Pugal and Poongodi started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 460 km apart. Pugal’s average speed was 60 $\frac{km}{h.}$
What was Poongodi’s driving speed
$\frac{km}{h}$

Answer:_______________

Kalai and Parveen started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 220 km apart. Kalai’s average speed was 45 $\frac{km}{h.}$
What was Parveen’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 4h, they were 400 km apart. Raj’s average speed was 55 $\frac{km}{h.}$
What was Savithri’s driving speed
$\frac{km}{h}$

Answer:_______________

Aravindh and Haritha started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 220 km apart. Aravindh’s average speed was 55 $\frac{km}{h.}$
What was Haritha’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 4h, they were 360 km apart. Pugal’s average speed was 45 $\frac{km}{h.}$
What was Pavi’s driving speed
$\frac{km}{h}$

Answer:_______________

Karna and Kumutha started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 400 km apart. Karna’s average speed was 45 $\frac{km}{h.}$
What was Kumutha’s driving speed
$\frac{km}{h}$

Answer:_______________

10)

Moorthi and Tulasi started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 270 km apart. Moorthi’s average speed was 45 $\frac{km}{h.}$
What was Tulasi’s driving speed
$\frac{km}{h}$

Answer:_______________

SOLUTION 1 :

← Karna	Haritha →

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 Haritha after 2 hours	→	200 km - 110 km
		=	90 km

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

SOLUTION 1 :

← Chidambaram	Pavi →

Starting Point

Step 1:	Distance travelled by Chidambaram after 3 hours	→	3 h x 55 $\frac{km}{h}$
		=	165 km

Step 2:	Distance travelled by Pavi after 3 hours	→	375 km - 165 km
		=	210 km

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

SOLUTION 1 :

← Narayanan	Chellamal →

Starting Point

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

Step 2:	Distance travelled by Chellamal after 2 hours	→	220 km - 100 km
		=	120 km

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

SOLUTION 1 :

← Pugal	Poongodi →

Starting Point

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

Step 2:	Distance travelled by Poongodi after 4 hours	→	460 km - 240 km
		=	220 km

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

SOLUTION 1 :

← Kalai	Parveen →

Starting Point

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

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

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

SOLUTION 1 :

← Raj	Savithri →

Starting Point

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

Step 2:	Distance travelled by Savithri after 4 hours	→	400 km - 220 km
		=	180 km

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

SOLUTION 1 :

← Aravindh	Haritha →

Starting Point

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

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

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

SOLUTION 1 :

← Pugal	Pavi →

Starting Point

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

Step 2:	Distance travelled by Pavi after 4 hours	→	360 km - 180 km
		=	180 km

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

SOLUTION 1 :

← Karna	Kumutha →

Starting Point

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

Step 2:	Distance travelled by Kumutha after 4 hours	→	400 km - 180 km
		=	220 km

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

10)

SOLUTION 1 :

← Moorthi	Tulasi →

Starting Point

Step 1:	Distance travelled by Moorthi after 3 hours	→	3 h x 45 $\frac{km}{h}$
		=	135 km

Step 2:	Distance travelled by Tulasi after 3 hours	→	270 km - 135 km
		=	135 km

Step 3:	Tulasi's speed	→	135 km ÷ 3 h
		=	45 $\frac{km}{h}$