Same order they appeared in d question paper.
Q3) A man is 5 times older than his son. Four yrs ago, d product of their ages was 448. Find their present ages.
Q7a) Find d value of n if
32n+1 – 4(3n+1) + 9 = 0
Q7b) Solve d eqn:
log(x2+4) = 2 + logx – log20
Q9a) A two-digit number is such that its tens digit is greater than its unit digit by 5. If d number is 14 less than 3 times d product of its digits, find d number.
But this Questions self use scope hard ooo.
Lets see who can solve it.
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