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Anushka Lall
CAT Preparation Community 2y ago
Let a and b be natural numbers. If a²+ab+a=14 and b²+ab+b=28, then(2a+b) equals?
3
Shiv Raj 2y ago
a=2 and b=4
2a+b = 8
Harshvardhan Sharma 2y ago
a=2 and b= 4so answer will be 8
Pulkit Goyal 2y ago
a(a+b+1)=14 ...i
b(a+b+1)=28 ...ii
ii/i:
b/a=2
let a=x, b=2x
x(x+2x+1)=14
x=2,-7/3
for natural number x=a=2, b=4
