2 years ago in Problems on Numbers

# The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is:

[A] 20
[B] 30
[C] 40
[D] None of these

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bOnNy 616 - 1 year ago

bOnNy 616 from Pathanamthitta, India is saying None of these is correct answer

## Related Questions

• [A] 10
• [B] 20
• [C] 8
• [D] 19
• [E] 22

### Find the largest number which gives out remainders 2 and 5 respectively when used to divide 80 and 122 .

• [A] 19
• [B] 17
• [C] 13
• [D] infinite number of solutions
• [E] None of these

### The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is

• [A] 46
• [B] 48
• [C] 50
• [D] 56
• [E] None of these

### Maximum numbers that can be formed using all the 4 digits 6, 4, 8, 1 without repetition and which is divisible by 9 ?

• [A] 0
• [B] 450
• [C] 900
• [D] 150
• [E] None of these

### The sum of the digits of a two-digit number is 15 and the difference between the digits is 3. What is the two-digit number?

• [A] 69
• [B] 78
• [C] 96
• [D] Cannot be determined
• [E] None of these