Archives

Estimate what part of the figures is coloured and hence find the per cent which is coloured. (i)

(i) Solution:- From the figure, we get to know that 1 part is shaded out of 4 equal parts. It is represented by a fraction = ¼ Then, = ¼ ×... View Article

Convert the given decimal fraction to percent. (a) 0.65 (b) 2.1 (c) 0.02 (d) 12.35

(a) 0.65 Answer To convert the decimal into percentile first will remove the decimal point and convert it into a fraction = 65/100 Now... View Article

Convert the given fractional numbers to percent. (a) 1/8 (b) 5/4 (c) 3/40 (d) 2/7

(a) 1/8 Answer To convert a fraction into a percentage we have to multiply the fraction by 100 and put the percent sign %. = (1/8) × 100 % =... View Article

Population of Rajasthan = 570 lakhs and population of UP = 1660 lakhs. Area of Rajasthan = 3 lakh km2 and area of UP = 2 lakh km2. (i) How many people are there per km2 in both these States? (ii) Which State is less populated?

Given Population of Rajasthan = 570 lakhs Population of UP = 1660 lakhs. Area of Rajasthan = 3 lakh km2 Area of UP = 2 lakh km2. Find... View Article

In a computer lab, there are 3 computers for every 6 students. How many computers will be needed for 24 students?

Given There are 3 computers for every 6 students in the computer lab Find out Number of computers needed for 24 students Solution From... View Article

Find the ratio of: 9 m to 27 cm

9 m to 27 cm Solution We have to find the ratio of 9 m to 27 cm We know that, 1 m = 100 cm 9 m = 9 × 100 = 900 cm To find the ratio,... View Article

Find the ratio of: 15 kg to 210 g

15 kg to 210 g Solution We have to find the ratio of 15 kg to 210 g We know that, 1 kg = 1000 g 15 kg = 15 × 1000 = 15000 g To find... View Article

Find the ratio of: ₹ 5 to 50 paise

₹ 5 to 50 paise Solution We have to find the ratio of ₹ 5 to 50 paise We know that, ₹ 1 = 100 paise ₹ 5 = 5 × 100 = 500 paise... View Article

In the given figures below, decide whether l is parallel to m.

We have to find if the lines in the given figures are parallel or not. (i) Answer Let us answer the two lines l and m, n is the transversal... View Article

In the given figure, the arms of two angles are parallel.

Solution (i) Let us assume that AB ∥ DG BC is the transversal line intersecting AB and DG From the property of corresponding... View Article

Find the value of x in each of the following figures if l ∥ m.

(i) Solution:- Let us assume other angle on the line m be ∠y, Then, From the property of corresponding angles, ∠y = 110o We know... View Article

In the adjoining figure, p ∥ q. Find the unknown angles.

Solution:- From the figure we get to know that ∠d = ∠125o … [∵ corresponding angles] We know that, Linear pair is the sum of... View Article

In the adjoining figure, identify (i) The pairs of corresponding angles. (ii) The pairs of alternate interior angles. (iii) The pairs of interior angles on the same side of the transversal. (iv) The vertically opposite angles.

(i) The pairs of corresponding angles. Answer From the figure we get to know that the pairs of corresponding angle are, ∠1 and ∠5,... View Article

State the property that is used in each of the following statements? (i) If a ∥ b, then ∠1 = ∠5. (ii) If ∠4 = ∠6, then a ∥ b. (iii) If ∠4 + ∠5 = 180o, then a ∥ b.

(i) If a ∥ b, then ∠1 = ∠5. Answer The property used here is Corresponding angles property in the above statement. (ii) If ∠4 =... View Article

In the adjoining figure, name the following pairs of angles. (i) Obtuse vertically opposite angles (ii) Adjacent complementary angles (iii) Equal supplementary angles (iv) Unequal supplementary angles (v) Adjacent angles that do not form a linear pair

(i) Obtuse vertically opposite angles Answer In the given figure ∠AOD and ∠BOC are obtuse vertically opposite angles. (ii) Adjacent... View Article

If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are __________.

If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite... View Article

M	T	W	T	F	S	S
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31