The ages of Samir and Tanuj are in the ratio of 8 : 15 years respectively. After 9 years the ratio of…
The correct choice is: 21 years Let the ages be \(8x\) and \(15x\). Then \(\dfrac{8x+9}{15x+9} = \dfrac{11}{18}\). \(144x + 162 = 165x + 99 \Rightarrow 21x = 63 \Rightarrow…
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The ages of Samir and Tanuj are in the ratio of 8 : 15 years respectively. After 9 years the ratio of their ages will be 11 : 18. What is the difference in years between their ages?
Answer and explanation
Correct answer D
The correct choice is: 21 years
Let the ages be and . Then .
.
Ages are 24 and 45; difference . Hence the answer is 21 years.
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NCHM Joint Entrance Examination (NCHM JEE)