Sharon Thomas

The total expenses of a hotel are partly fixed and partly variable, varying linearly with the number of guests. The average expense per guest is $70 when there are 25 guests and $60 when there are 50 guests. The average expense per guest when there are 100 guests is

There are sixty people in a gym. These people are divided into 3 groups A, B and C of 15, 20 & 25 people each. Groups A and C are combined to create group D. If everyone in the gym has the same weight, which of the following is incorrect?

You are given a sequence of 6 consecutive integers. The average of the first 5 is n. The average of all 6 integers is

In a certain company, 40% of the employees are men and 75% of the men earn more than USD25,000 per quarter. If 45% of the employees earn more than USD25,000 per quarter, what is the fraction of women employed that earns less than or equal to USD25,000 per quarter?

Madan went to the market with certain sum of money. With his money he can buy either 50 apples or 40 pineapples. He retains 10% of the money for buying milk. If he buys 20 pineapples, then the number of apples he can buy is

In an examination, the score of A was 10% less than that of B, the score of B was 25% more than that of C, and the score of C was 20% less than that of D. If C scored 56, then the score of A was

The list price of a product was increased by 10% and then decreased by 10%. If the list price was 20, what was the final price?

630 members of a group are arranged in rows for a group photo. Each row contains 3 fewer members than the row ahead of it. The number of rows that is not possible is

The number of terms which are common in the two series 17 , 21 , 25 , … , 417 and 16 , 21 , 26 , … , 466 is