Numbers (4) Full Test

Which one of the following is not a prime number?

• • 131

• • 147

• • 137

• • 157

The remainder obtained when a prime number greater than 6 is divided by 6 is

• • 1 or 5

• • 3 or 5

• • 1 or 3

• • 4 or 5

How many factors does 200 have? Or how many equal distributions are possible for 200?

• • 10

• • 9

• • 6

• • 12

You have 150 doors in a row that are all initially closed. You make 150 passes by the doors starting with the first door every time. The first time through, you visit every door and toggle the door (if the door is closed, you open it; if it's open, you close it). The second time, you only visit every 2nd door (door #2, #4, #6), and so on, until you only visit the 150th door. After the last pass, how many doors are open?

• • 50

• • 12

• • 100

• • 25

In Palani temple, there are some magical bells which toll 15 times in a day, simultaneously. But every bell tolls at a different interval of time, but not in a fraction of minutes. What is the maximum number of bells in the temple?

• • 15

• • 12

• • 40

• • 60

Which is the co-prime number pair?

• • (8, 15)

• • (9, 27)

• • (12, 18)

• • (21, 35)

If 89A3149B is divisible by 88, then what is the value of A + B ?

• • 6

• • 8

• • 9

• • 10

If the number 30946A is divisible by 9, then what is the value of A?

• • 1

• • 2

• • 3

• • 5

512 * 624 = 3N9488. What is the value of N?

• • 7

• • 8

• • 9

• • 1

The numbers 1 to 99 are written side by side as follows: 123456...9899. If the number is divided by , then what is the remainder?

• • 9

• • 0

• • 1

• • 10