The speed of a plane was raised by 60% by the pilot and then

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IB ACIO Grade-II (Executive) Official Paper (Held On: 20 Feb, 2021 Shift 2)
General Awareness
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Quantitative Aptitude
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Reasoning
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English
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General Knowledge
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SKINS
ADS

Red
Pink
Purple
Deep Purple
Indigo
Blue
Light Blue
Cyan
Teal
Green
Light Green
Lime
Yellow
Amber
Orange
Deep Orange
Brown
Grey
Blue Grey
Black
White

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38

M: +1.00/-0.25

The speed of a plane was raised by 60% by the pilot and then the raised speed was reduced by 50%. The speed measured by the sonic radar at this point of time was 2400 km/h. Find the initial speed of the plane.

[IB ACIO Grade-II (Executive) Official Paper (Held On: 20 Feb, 2021 Shift 2)]

A

3000 km/h

B

2800 km/h

C

2400 km/h

D

3200 km/h

EXPLANATION

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