Question

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EXERCISE 10A
of the following ratios in the simplest form
84 paise to
(u) 4 kg to 750 g
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(v) 48 minutes to I hour vi) 2.4 km to 900
of the following ratios in the simplest form
324 144
(m) 85 561
iv) 186 403
(vi) 7771147
wach of the following ratios in the simplest form
w010
(1) 3 weeks 30 days (1) 3 m 5 cm : 3
2 hours 40 min (v) IL 35 ml 270 ml (vi) 4 kg: 2 kg 5
and his wite are both school teachers and earn 16800 and 1​

Answer 1

Answer:

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Ambar Bhandari

Grade 11

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(i) 24:56 = 24 = 24 ÷ 8 = 3

56 56 ÷ 8 7

As the H.C.F. of 3 and 7 is 1, the simplest form of 24:56 is 3:7.

(ii) 84 paise to Rs 3 = Rs 0.84 to R. 3 = 0.84 = 0.84 ÷ 3 = 0.28 = 28 = 28 ÷ 4 = 7

3 3 ÷ 3 1 100 100 ÷ 4 25

As the H.C.F. of 7 and 25 is 1, the simplest form of 0.84:3 is 7:25.

(iii) 4 kg:750 g = 4000 g:750 g = 4000 ÷ 250 = 16

750 ÷ 250 3

As the H.C.F. of 16 and 3 is 1, the simplest form of 4000:750 is 16:3.

(iv) 1.8 kg:6 kg = 1.8 = 18 = 18 ÷ 6 = 3

6 60 60 ÷ 6 10

As the H.C.F. of 3 and 10 is 1, the simplest form of 1.8:6 is 3:1.

(v) 48 minutes to 1 hour = 48 minutes to 60 minutes = 48:60 = 48 ÷ 12 = 4

60 ÷ 12 5

As the H.C.F. of 4 and 5 is 1, the simplest form of 48:60 is 4:5.

(vi) 2.4 km to 900 m = 2400m:900m = 2400 = 24 = 24 ÷ 3 = 8

900 9 9 ÷ 3 3

As the H.C.F. of 8 and 3 is 1, the simplest form of 2400:900 is 8:3.