Arihant Expert Team Solutions for Chapter: Self Evaluation Tests, Exercise 8: Numerical Ability

The ages of Shirish and Kunder are in the ratio of $5:6$ respectively. After $8$ year, the ratio of their ages will be $7:8$. What is the difference in their ages?

If $3\mathrm{Y}+9\mathrm{X}=54$ and $\frac{28\mathrm{X}}{13\mathrm{Y}}=\frac{140}{39}$, then what is the value of $\mathrm{Y}-\mathrm{X}$?

The difference between the $\frac{3}{4}\mathrm{th} \mathrm{of} \frac{4}{5}\mathrm{th}$ of a number and $\frac{1}{6}\mathrm{th} \mathrm{of} \frac{2}{5}\mathrm{th}$ of the same number is $648$. What is the number.

On a School's Annual Day sweets were to be equally distributed amongst $112$ children. But on that particular day, $32$ children were absent. Thus, the remaining children got $6$ extra sweets. How many sweets were each child originally supposed to get?

If  $3\frac{4}{5}$ is subtracted from $6\frac{3}{5}$ and difference is multiplied by $355$, then what will be the final number?

An order was placed for supply of carpet of breadth $3 \mathrm{m}$, the length of carpet was$1.44$ times of breadth. Subsequently the breadth and length were increased by $25\%$ and $40\%$, respectively. At the rate of $\mathrm{Rs}. 45 \mathrm{per} \mathrm{sq} \mathrm{m}$, what would be the increase in the cost of the carpet?

The length of a rectangular plot is thrice its breadth. If the area of the rectangular plot is $7803 \mathrm{sq} \mathrm{m}$, what is the breadth of the rectangular plot?

Ratio of Rani's and Komal's age is $3:5$, respectively. Ratio of Komal's and Pooja's age is$2 : 3$, respectively. If Rani is two-fifth Pooja's age, what is Rani's age?