Subject Experts Solutions for Chapter: Practice Test Papers, Exercise 5: MATHEMATICAL ABILITY

The average age of $P, Q, R$at present is $26$years. If $R$is $6$years older than $P$, how old is $Q$now?

Simplify: $100\times 0.2+0.01\times 1000+110=?$

What should come in the place of question mark(?)?
$\frac{1}{2}+\frac{1}{4}+?=\frac{25}{28}$

Simplify: $5\frac{2}{3}÷(2-\frac{1}{2})=?$

Simplify: $1+(1÷(5÷4-1÷(13÷3-1÷3)\left)\right)=?$

Simplify: $4\times 32 \mathrm{of} 75\%÷3=?$

Simplify: $(242-17{)}^2-(7\times 5{)}^2=?$

What should come in the place of question mark(?) in the following: 
$64\% \mathrm{of} ?=20+20\% \mathrm{of} 20.$