india

PUZZLE 35

1. The sum of seven numbers is 235. The average of the first three is 23 and that of the last three is 42. Find the fourth number?

2. By how much is 15% of 23.5 is more than 20% of 14 ?

1. Answer:40

Solution:The sum of first three numbers = 3 x 23 = 69. The sum of last three numbers = 3 x 42 = 126. Thus the fourth number is 235 – 69 – 126 = 40.

2. Answer:0.725

Solution:15% of 23.5 = 0.15 x 23.5 = 3.525 and 20% of 14 = 0.2 x 14 = 2.8. Thus it is more by 3.525 – 2.8 = 0.725

Source: Read Full Article