Q1. A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years. The sum is:

1. Rs. 650
2. Rs. 690
3. Rs. 698
4. Rs. 700

EXPLANATION

Option 1. 

A sum of money at Simple Interest amounts to Rs. 815 in 3 years. 

The same money is amount to Rs. 854 in 4 years. 

Formula used Simple interest = (Principal x rate x time)/100 

A sum of money at Simple Interest amounts to Rs. 815 in 3 years and Rs. 854 in 4 years 

Simple interest for 1 year = 854-815 ⇒ Rs. 39 

Simple interest for 3 year = 39 x 3 ⇒ 117 

The sum is = 815-117 ⇒ Rs. 698 

The sum is 698.

Q2. Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years is Rs. 3508, what was the amount invested in Scheme B?

1. Rs. 6400
2. Rs. 6500
3. Rs. 7200
4. Rs. 7500

EXPLANATION

Option 1.

Q3. Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is:

1. 2: 5
2. 3: 5
3. 4: 5
4. 6: 7

EXPLANATION

 The Correct option is 3.

Q4. In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the run rate in the remaining 40 overs to reach the target of 282 runs?

1. 6.25
2. 6.5
3. 6.75
4. 7

EXPLANATION

 The correct option is 1. 

For first 10 overs, run rate = 3.2

⇒ Runs scored = 3.2×10=32

Total runs to be scored = 282

Runs Left to be scored in 40 overs = 282−32/40

=250/40

Required Run-Rate in remaining overs = 6.25

Q5. A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

1. 3.6
2. 7.2
3. 8.4
4. 10

EXPLANATION

The correct option is 2.

Distance= 600m

Time= 5 min= 5/60 sec

Speed = Distance/ Time

= 600/5*60 m/sec

=2m/s * 18/5

=7.2 km/hr