# Arithmetic Numerical Ability Assessment Tests

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In covering a distance of 30 km, Celine takes 2 hours more than Sam. If Celine doubles his speed, then he would take 1 hour less than Sam. Celine's speed is:

A. 5 kmph
B. 6 kmph
C. 6.25 kmph
D. 7.5 kmph

### Answer & Explanation:

Explanation: Let Celine's speed be x km/hr.

Then, 30/x - 30/2x = 3

6x = 30

x = 5 km/hr.

Robert is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph, he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M.?

A. 8 kmph
B. 11 kmph
C. 12 kmph
D. 14 kmph

### Answer & Explanation:

Explanation:

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is:

A. 2 : 3
B. 3 : 2
C. 3 : 4
D. 4 : 3

### Answer & Explanation:

Explanation:

A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot @ 4 km/hr and partly on bicycle @ 9 km/hr. The distance travelled on foot is:

A. 14 km
B. 15 km
C. 16 km
D. 17 km

### Answer & Explanation:

Explanation: Let the distance travelled on foot be x km.

Then, distance travelled on bicycle = (61 -x) km.

So, x/4 + (61 -x)/9 = 9

9x + 4(61 -x) = 9 x 36

5x = 80

x = 16 km.

#### Square and Cubic Conversion

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