Question

4/5:21/29::7/10:?............​

Answer 1

Answer:

147/232

Step-by-step explanation:

Given  

4/5:21/29::7/10:?............

We know that  

Product of means is equal to product of extremes in a ratio. So we get

4/5 x = 21 / 29 x 7/10

4/5 x = 147 / 290

x = 147/290 x 5/4

x = 147 / 232

So the missing number will be 147/232  

Answer 2

Answer:

Step-by-step explanation:

4 21. 7. 59

_ : __ :: __ : __

5 29. 10. 107

This is right ans beacause

4×4 = 16 + 5 = 21 and

5×5 =25 = 25+4 = 29

also

7 × 7 = 49 + 10 = 59 and

10 × 10 = 100 +7 = 107

I hope it helps you