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ജലീലിന്റെ വയസ്സും അതിൻറ 1/3 ഭാഗവും കൂട്ടിയാൽ ഖലീലിന്റെ വയസ്സായ 20 കിട്ടും. എത്ര വർഷം കഴിഞ്ഞാൽ അവരുടെ വയസ്സകളുടെ തുക 51 ആകും?

A8

B6

C5

D10

Answer:

A. 8

Read Explanation:

ജലീലിന്റെ വയസ്സ് = X

ഖലീലിന്റെ വയസ്സ് = X+X/3=20

=3X+X=60

=4X=60

=X=15

ജലീലിന് 15 വയസ്സും ഖലീലിന് 20 വയസ്സും.

ഇവരുടെ വയസ്സുകളുടെ ആകെ തുക 35.

തുക 51 ആകാൻ 51-35= 16 വയസ്സ് വേണം (രണ്ട് പേരുടെയും കൂടിയ വയസ്സ്)

16÷2=8 വർഷം.


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