Question

EXERCISE 10D
OBJECTIVE QUESTIONS
Mark (/) against the correct answer in each of the following:
1. The ratio 92 : 115 in its simplest form is
(a) 23 : 25
(b) 18:23
(c) 3:5
(d) 4:5
2. If 57:x::51: 85, then the value of x is
(a) 95
(b) 76
(c) 114
(d) none of these
3. If 25:35 :: 45:x, then the value of x is
(a) 63
(b) 72
(c) 54
(d) none of these
4. If 4:5::X:35, then the value of x is
(a) 42
(b) 32
(c) 28
(d) none of these
5. If a, b, c, d are in proportion, then
(a) ac = bd
(b) ad = bc
(c) ab = cd
(d) none of these
6. If a, b, c are in proportion, then
(a) a? = bc
(b) b = ac
(c) c = ab
(d) none of these
7. Choose the correct statement:
(a) (5:8) > (3:4) (b) (5:8) < (3:4) (c) two ratios cannot be compared​

Answer 1

Answer:

@8:3

b part

c part

a part

Answer 2

Answer:

1. (d) 4:5

Because they both are divisible by 23

2. (a) 95

85 × 57 = 51 × x

4845 = 51 × x

x= 4845 ÷ 51 = 95

3. (d) none of these

because it's value is in decimal point

4. (d) none of these

it's value is in points

5. (c) ab : cd

6. (a) a? = bc

7. (a) (5:8) > (3:4)

because 5:8 value is 40 and 3:4 is 12

Hope it Helps!

Plzzzzzzzzzz Mark As Brainliest!!