$34.5 \% \text{ of } 1800 + 12.4 \% \text{ of } 1500 = (?)^3 + 78$

The present population of a town is $26010$. It increases annually at the rate of $2\%$. What was the population of the town two years ago?

When a number is increased by $216$,it becomes $140\%$ of itself. What is the number?

Six-elevenths of a number is equal to $22 \%$ of the second number. The second number is equal to one-fourth of the third number. The value of the third number is $2400$. What is $45 \%$ of the first number?

An inspector rejects $0.08 \%$ of the meters as defective. How many will he examine to reject $2$?

If inflation increases at a rate of $8 \%$ p.a.,what will a $₹ 20$ article cost at the end of two years?