In T nagar many buildings were under residential category. For residential buildings they number as 1 to 100. For shops, corporation numbered between 150 and 200 only prime numbers. How many times will 6 appear in any building numbering?

When 335 is added to 5A7, the result is 8B2. 8B2 is divisible by 3. What is the largest possible value of A?

• [A] 8
• [B] 2
• [C] 1
• [D] 4
• [E] None of these

In a two-digit, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is:

• [A] 24
• [B] 26
• [C] 42
• [D] 46

There is a 5 digit no. Sum of 3 pairs of digits is eleven each. Last digit is 3 times the first one. 3rd digit is 3 less than the second. 4th digit is 4 more than the second one. Find the number.

• [A] 25296
• [B] 26594
• [C] 24569
• [D] 26458
• [E] None of these

What is the least number to be added to 4321 to make it a perfect square?

• [A] 32
• [B] 34
• [C] 36
• [D] 38
• [E] None of these

Six bells commence tolling together and toll at intervals 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes how many times they toll together.

• [A] 4
• [B] 10
• [C] 15
• [D] 16
• [E] 18