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(#M40036563) IGATE Numerical Ability question Find the number Keep an EYE

There is a 4 digit no. in which 3rd digit is twice of first one. Second digit is the sum of first and third. Fourth digit is twice of third. What is the no?

Asked In iGate Pratima Bawa (11 years ago)

Solved Saraswathy Read Solution (4)

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Read Solution (4) :

Saraswathy  (11 years ago)

Let the 4-digit no. be "abcd"
c = 2*a
b=a+c
d = 2*c => d=4a
abcd => (a)(a+c)(2a)(4a)
Possible values of a ll be 1 nd 2... Bcozzz a>2 implies d>10....Digits should ranges between 0 nd 9...
If a=1, then c=2,d=4, b=3... The no. is 1324
If a=2, then c=4,d=8, b=6... The no. is 2648

Ans : 1324 (or) 2648

Is this solution Helpfull? Yes (56) | No (1)  

Srinivas Boga  (11 years ago)

Assume Num is : WXYZ?
W=1st digit
from the give question;
Y=2W
X=3W
Z=4W
Lets assume as W value,,,i.e,
W=1; W(3W)(2W)(4W)--->1324
W=2; 2(3*2)(2*2)(2*4)----->2648 are only value's

Is this solution Helpfull? Yes (4) | No (1)  

mathuku harani  (11 years ago)

x,3x,2x,4x
1324

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ipsita upadhyay  (9 years ago)

ya the answer is 1234 or 2468

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