Karnataka Board Solutions for Chapter: Solved Examples, Exercise 1: Exercise 1

 Pinky runs around a square field of side $75 \mathrm{m}$, Bob runs around a rectangular field with length $160 \mathrm{m}$ and breadth $105 \mathrm{m}$. Who covers more distance and by how much?

There are $45$ persons working in an office. If the number of females is $25$ and the remaining are males, find the ratio of:

The number of females to number of males.

Ratio of distance of the school from Mary's home to the distance of the school from John's home is $2: 1$.
Complete the following table which shows some possible distances that Mary and John could live from the school.

If the ratio of distance of Mary's home to the distance of Kalam's home from school is $1: 2,$ then who lives nearer to the school?

 If the cost of a dozen soaps is ₹ $153.60$, what will be the cost of 15 such soaps?

 Cost of $105$ envelopes is $₹350$. How many envelopes can be purchased for $₹100$?

A car travels $90 \mathrm{km}$ in $2\frac{1}{2}$ hours.

How much time is required to cover $30 \mathrm{km}$ with the same speed?

A car travels $90 \mathrm{km}$ in $2\frac{1}{2}$ hours.

Find the distance covered in $2$ hours with the same speed.