If the square of a two-digit number is reduced by the square of the number formed by reversing the digits of the number, the final result is:
- Divisible by 11
- Necessarily irrational
- Divisible by 9
- Both A and C
Math
If there is a reduction in the number of workers in a factory in the ratio 15:11 and an increment in their wages in the rate 22:25, then the ratio by which the total wages of the workers should be decreased =?
If there is a reduction in the number of workers in a factory in the ratio 15:11 and an increment in their wages in the rate 22:25, then the ratio by which the total wages of the workers should be decreased =?
- 6:5
- 5:6
- 3:7
- 3:5
What could be the maximum value of B in the following equation? 2A8+3B5+ 5C8 = 1111
What could be the maximum value of B in the following equation? 2A8+3B5+ C(5,8) = 1111
- 3
- 5
- 9
- 0
A father said to his son, “I was old as you now at the time of your birth.” If the father’s age is 38 years now. What is the son’s age five years back?
A father said to his son, “I was old as you now at the time of your birth.” If the father’s age is 38 years now. What is the son’s age five years back?
- 14
- 28
- 12
- 17
If 3 / P = 6 and 3 / Q = 15 then P – Q =
If 3 / P = 6 and 3 / Q = 15 then P – Q =
- 1/3
- 2/5
- 3/10
- 5/6
The probability of obtaining an even prime number on each die, when a pair of dice is rolled is-
The probability of obtaining an even prime number on each die, when a pair of dice is rolled is-
- 0
- 1/3
- 1/12
- 1/36
If log_x(1/81)+4=0 then, x = ?
If logx(1/81)+4=0 then, x = ?
- 1/3
- 2
- 3
- 0
What is the value of dy/dx when y= cos^-1(4x ^ 3 – 3x)?
What is the value of dy/dx when y= cos-1(4x3 – 3x)?
- -3/√(1 – x2)
- 3/√(1 – x2)
- 4/√(1 – x2)
- -4/√(3x2 – 1)
একটি বর্গক্ষেত্রের পরিসীমা এর কর্ণের দৈর্ঘ্যের কত গুণ?
একটি বর্গক্ষেত্রের পরিসীমা এর কর্ণের দৈর্ঘ্যের কত গুণ?
- √2/2
- √2
- 2√2
- 2
একজন শিক্ষার্থীকে পাস করতে ৪০% নম্বর পেতে হবে। সে ২০ নম্বর পায় এবং ৪০ নম্বরের জন্য ফেল করে। পরীক্ষায় সর্বোচ্চ নম্বর কত ছিল?
একজন শিক্ষার্থীকে পাস করতে ৪০% নম্বর পেতে হবে। সে ২০ নম্বর পায় এবং ৪০ নম্বরের জন্য ফেল করে। পরীক্ষায় সর্বোচ্চ নম্বর কত ছিল?
- ১০০
- ১২০
- ১৫০
- ১৬০
