Arihant Expert Team Solutions for Exercise 1: Practice Questions

If $2\times 2=16$ , $2\times 4=64$ and $2\times 5=100$, then $2\times 6=?$

If $4+3=25$ and $8+4=80$, then $3+2=?$

If $19\left(36\right)13$ and $37\left(81\right)28$, then what is the value of ‘A’ in $43\left(\mathrm{A}\right)38$?

If$÷$stands for $\times$, $\times$stands for $-$,$-$ stands for $+$ and $+$ stands for$÷$then $48+6-12÷2+10=?$

(Do chronologically and not according to BODMAS rule )

Select the correct combination of mathematical signs to replace * signs and to balance the given equation.

$\left(81*9\right)*8*7*79$

Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation.
$7\times 4\times 8=4498$, $3\times 6\times 5=695$, then $5\times 9\times 4=?$

Some equations are solved on the basis of a certain system. On the same basis, find out the correct answer for the unsolved equation.

$5\times 6\times 9=659,4\times 7\times 3=743,9\times 2\times 8=?$

If ‘$P$’ stands for ‘$-$‘, ‘$Q$’ stands for ‘$\times$’, ‘$R$’ stands for ‘$÷$’ and ‘$S$’ stands for ‘$+$’, then what is the value of the given equation?

$14 Q 3 P 12 S 4 R 2 = ?$