If the product of two positive numbers is 1575 and their ratio is 7 : 9, then the greater number is
45
35
135
135
What is the smallest number by which 625 must be divided so that the quotient is a perfect cube?
25
5
2
2
When 335 is added to 5A7, the result is 8B2. 8B2 is divisible by 3. What is the largest possible value of A?
8
2
1
1
The greatest 4-digit number exactly number by 10, 15, 20 is
9990
9960
9980
9980
B.
9960
LCM of 10, 15 and 20 = 60
Largest 4-digit number = 9999
∴ Required number = 9999 - 39 = 9960
The sum of the squares of two natural consecutive odd numbers is 394. The sum of the numbers is
24
32
40
40