**1541. On a certain project, the only grades awarded were 80 and 100. If ten students completed the project and the average if their grades was 9.1, how many earned 100?**

A. 2**B. 3 ***

C. 5

D. 7

**1542. For the final step in a calculation, Ahmed accidentally divided by 1000, instead of multiplying by 1000 .What should he do to his incorrect answer to correct it?**

A. Multiply by 1000

B. Multiply by 100,000**C. Multiply by 1000,000 ***

D. Square it

**1543. If the product of 4 consecutive integers is equal to one of them, What is the largest possible value of one of the integers?**

A. 0**B. 3 ***

C. 4

D. 6

**1544. Which of the following is equal to (78-79)10?**

A. 727

B. 782

C. 7170**D. None of above**

**1545. What fractional part of a week is 98 hours?**

A. 7/24

B. 24/98

C. 1/2**D. 7/12 ***

**1546. Which of the following ratios is the largest ?**

**A. 21:29 ***

B. 17:25

C. 14:23

D. 7:15

**1547. 0.8 expressed as a fraction is ________.**

A. 10/8**B. 8/10 ***

C. 15/10

D. 20/7

**1548. 0.7683+0.369+0.05+0.8=?**

A. 0.8065**B. 1.9873 ***

C. 0.8110

D. None

**1549. 3.1469+6.837+?=15**

A. 24.9839

B. 5.7634**C. 5.0161 ***

D. None

**1550. A boy earns Rs 20.56 on Monday , Rs 32.90 on Tuesday, Rs 20.78 on Wednesday .He spends half of all that the earned during the three days .How much has he left ?**

A. Rs 35.00

B. Rs 36.15**C. Rs 37.12 ***

D. Rs 37.50