Numbers problems
- 1. 10 is added to a certain number, the sum is multiplied by 7, the product is divided by 5 and 5 is subtracted from the quotient. The remainder left is half of 88. What is the number?
Options- A. 21
- B. 20
- C. 25
- D. 30 Also asked in: Bank Exams
Correct Answer: 25
Explanation:
Let the number be x
When 10 is added, number = x + 10
When 7 is multiplied, number = 7 X (x + 10)
According to question,
?[7 X (x+10) / 5] ?5 = 44
?7x + 70 = 49 X 5
?x + 10 = 35,
?x = 25
- 2. How many numbers are there from 700 to 950 (including both) which are neither divisible by 3 nor by 7?
Options- A. 107
- B. 141
- C. 144
- D. 145 Discuss
Correct Answer: 144
- 3. Find the square root of 15625.
Options- A. 125
- B. 145
- C. 150
- D. 135 Discuss
Correct Answer: 125
- 4. The average value of property of Agil, Mugilan and Anithais Rs. 130cr. The Property of Agil is 20cr greater than the property value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value ofproperty of Anitha is
Options- A. 120 cr
- B. 170 cr
- C. 100 cr
- D. 150 cr Also asked in: Bank Exams
Correct Answer: 170 cr
Explanation:
- 5. The largest 5 digit number exactly divisible by 95 is ______.
Options- A. 99936
- B. 99935
- C. 99940
- D. 99933 Also asked in: Bank Exams
Correct Answer: 99940
- 6. 934+7217-9115=?
Options- A. 7 + 719/1020
- B. 9 + 817/1020
- C. 9 + 719/1020
- D. 7 + 817/1020 Discuss
Correct Answer: 7 + 817/1020
Explanation:
=> =>
- 7. For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?
Options- A. 48
- B. 49
- C. 50
- D. 51 Also asked in: GRE
Correct Answer: 50
Explanation:
1 < 4n + 7 < 200
n can be 0, or -1
n cannot be -2 or any other negative integer or the expression 4n + 7 will be less than1.
The largest value for n will be an integer < (200 - 7) /4
193/4 = 48.25, hence 48
The number of integers between -1 and 48 inclusive is 50
- 8. x = y - (50/y), where x and y are both > 0 If the value of y is doubled in the equation above, the value of x will
Options- A. decrease
- B. stay the same
- C. increase four fold
- D. increase to more than double Also asked in: GRE
Correct Answer: increase to more than double
Explanation:
The best approach is to pick a number that satisfies the rules that x and y are greater than 0. So for example you could choose 25 for y.
The value of x before doubling is then 25 - 50/25 = 23
The value after doubling y will be 50 - 50/50 = 49, which is more than double.
- 9. The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?
Options- A. A + 3
- B. A + 4
- C. A + 5
- D. A + 7 Also asked in: Bank Exams
Correct Answer: A + 5
- 10. The average of 8 consecutive integers is 23/2. What is the average of first three integers?
Options- A. 9
- B. 19/2
- C. 8
- D. 10 Also asked in: Bank Exams
Correct Answer: 9
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