Question

The number which added three times of itself gives 20 is

Answer 1

Hi friend
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Your answer
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Let the number be x.

It is added 3 times to itself.

Then,
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x + 3x = 20

=> 4x = 20

=> x = 20/4

=> x = 5

Therefore,
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The number is 5.

HOPE IT HELPS

Answer 2

A.T.Q
x+3x=20....(1)
4x=20
x=20/4
x=5
Hence the no. is 5 which when added to itself 3 times gives 20
Check: Put the value of x in (1)
5+3(5)=20
20=20
L.H.S=R.H.S
Hence proved