Question

3. Find which of the following are in proportion:
(I) 12,16,6,8 (II) 2,3,4,5 (III) 18,9,10,5 (IV) 18,9,10,5​

Answer 1

Answer:

except 2 all are in proportion

Step-by-step explanation:

we know that product of means =product if extreme

1. since product of means =product of extreme

so,

12×8=16 ×6

96= 96

so 12,16,6,8 are in proportion. .

2. . since product of means =product of extreme

so,

2×5=4×3

10=12

which is not possible

so 2,3,4,5 are not in proportion.

3. since product of means =product of extreme

so,

18×5=9×10

90=90

so 18,9,10,5are in proportion.

4. ques 3 and 4 are same.

Answer 2

Answer:

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