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.

Aravindh and Kumutha started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 180 km apart. Aravindh’s average speed was 45 $\frac{km}{h.}$
What was Kumutha’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

Moorthi and Jeevini started driving from the same place but in opposite directions along a straight road.
After driving for 3h, they were 345 km apart. Moorthi’s average speed was 70 $\frac{km}{h.}$
What was Jeevini’s driving speed
$\frac{km}{h}$

Answer:_______________

Narayanan and Thamarai started driving from the same place but in opposite directions along a straight road.
After driving for 4h, they were 460 km apart. Narayanan’s average speed was 65 $\frac{km}{h.}$
What was Thamarai’s driving speed
$\frac{km}{h}$

Answer:_______________

Prem and Ponnalagu 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 50 $\frac{km}{h.}$
What was Ponnalagu’s driving speed
$\frac{km}{h}$

Answer:_______________

Raj and Panimalar started driving from the same place but in opposite directions along a straight road.
After driving for 2h, they were 210 km apart. Raj’s average speed was 45 $\frac{km}{h.}$
What was Panimalar’s driving speed
$\frac{km}{h}$

Answer:_______________

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

Answer:_______________

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

Answer:_______________

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

Answer:_______________

10)

Karna and Mithra 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 50 $\frac{km}{h.}$
What was Mithra’s driving speed
$\frac{km}{h}$

Answer:_______________

SOLUTION 1 :

← Aravindh	Kumutha →

Starting Point

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

Step 2:	Distance travelled by Kumutha after 2 hours	→	180 km - 90 km
		=	90 km

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

SOLUTION 1 :

← Karna	Jeevini →

Starting Point

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

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

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

SOLUTION 1 :

← Moorthi	Jeevini →

Starting Point

Step 1:	Distance travelled by Moorthi after 3 hours	→	3 h x 70 $\frac{km}{h}$
		=	210 km

Step 2:	Distance travelled by Jeevini after 3 hours	→	345 km - 210 km
		=	135 km

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

SOLUTION 1 :

← Narayanan	Thamarai →

Starting Point

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

Step 2:	Distance travelled by Thamarai after 4 hours	→	460 km - 260 km
		=	200 km

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

SOLUTION 1 :

← Prem	Ponnalagu →

Starting Point

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

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

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

SOLUTION 1 :

← Raj	Panimalar →

Starting Point

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

Step 2:	Distance travelled by Panimalar after 2 hours	→	210 km - 90 km
		=	120 km

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

SOLUTION 1 :

← Murugan	Thamarai →

Starting Point

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

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

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

SOLUTION 1 :

← Karna	Indra →

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 Indra after 4 hours	→	360 km - 180 km
		=	180 km

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

SOLUTION 1 :

← Pugal	Panimalar →

Starting Point

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

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

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

10)

SOLUTION 1 :

← Karna	Mithra →

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 Mithra after 4 hours	→	400 km - 200 km
		=	200 km

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