Maths · Arithmetic and Geometric progressions
f The values of and in the box respectively are
f \( 20: 28=x: 7=10: y \) The values of \( x \) and \( y \) in the box respectively are
- A. 5,14
- B. 14,5
- C. 8,10 \)
- D. 10,8
Step-by-step solution
Simplify 20:28 to 5:7. Then from 5:7 = x:7, we get x=5. From 5:7 = 10:y, cross-multiply: 5y = 70, so y=14.
Related MCQs
- Ms. Kyle deposits an amount of Rs. 15400 to obtain a simple interest at the rate of for 4 years. What total amount will Ms. Kyle get at the …
- A man saved RS. 200 in each of the first three months of his service. In each of the subsequent months his saving increases by Rs. 40 more t…
- Which one of the following numbers is not a complete cube? 64,216,343,256…
- Find the number of triplets of integers in arithmetic progression, the sum of whose squares is 1994…
- The value of a machine depreciates at the rate of every year. it was purchased 3 years ago. If its present value is Rs. 8748 , its purchase …