Ratio & Proportion

Find the value of x, if

(а) 8, x, x, 50 are in proportion.

(b) 36, 90, 90, x are in proportion.

The cost of 10 tables is ₹ 7500. Find the number of tables that can be purchased with ₹ 9000.

The first, second and fourth terms in a proportion are 32, 112, 217 respectively. Find the third term.

Are 20, 25, 12, 15 in proportion?

39 packets of 12 pens each costs ₹ 374.40. Find the cost of 52 packets of 10 pens each.

Fill in the blank box.

Ramesh deposited ₹ 2050 in a bank and in the month of January he withdrew ₹ 410 from his account on the last date of the month. Find the ratio of

(a) Money withdrawn to the total money deposited.

(b) Money withdrawn to the remaining amount in the bank.

From the figure, find the ratio of

(a) The number of squares to the number of triangles.

(b) The number of circles to the number of rectangles

Are the following statement true? 45km: 60km = 12 hours: 15 hours.

Find the value of x, if

(а) 8, x, x, 50 are in proportion.

(b) 36, 90, 90, x are in proportion.

Divide 60 in the ratio of 2: 3.

Find X in the proportion X: 6 = 25: 5

39 packets of 12 pens each costs ₹ 374.40. Find the cost of 52 packets of 10 pens each.

In each of the following figures, find the ratio of the shaded region to the unshaded region.

Give two equivalent ratios of 3: 5.

Are the following statement true? 7.5litre: 15litre = 5kg: 10kg.

If 2A = 3B = 4C, find A: B: C

Find the ratio of 75 cm to 1.5 m.

The first, second and fourth terms in a proportion are 32, 112, 217 respectively. Find the third term.

Write True or False against the following statement: 5.2: 3.9:: 3: 4.