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13. Subodh is 10 years older than Amogh. After 10 years their total age will be40 years. What is Subodh's age today?(1) 15 years(4) 30 years.(2) 20 years(3) 24 years​

Answer»

LET AGE of amogh= a years

age of subodh = 10 years older than amogh

= a + 10

after 10 years

their ages are a+10, a+20

their total age will be 40 years

a+ 10+a+20= 40

2a + 30 = 40

2a = 40-30

2a = 10

a = 10/2

a= 5 years

a+10

= 5+10

=15 years

so

so age of Amogh = a = 5 years

so age of Amogh = a = 5 yearsage of Subodh= a+ 10= 5+10= 15years


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