Question

thrice the difference of their ages in years is same as sum
of ages. Find the age of father.
A person can row a boat 8km upstream and 24km
downstream n 4 hours. He can row 12km downstream
and 12 km upstream in 4 hours. Find the speed of rowing
in still water and speed of current
4 men and 6 boys can do a piece of work in 20 days. It
done by 3 men and 4 boys in 28 days. How long would
take for one man or one boy to do it?
If 7x + 9 = 42 and 9x + 2y = 22 then find the value
7.
x+y.
In the given figure ABCD is a rectangle then find the value​

Answer 1

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