৩৪৯১
যদি A একটি m × n আকারের ম্যাট্রিক্স এবং B একটি n × p আকারের ম্যাট্রিক্স হয় তাহলে তাদের গুণফল AB এর আকার হবে-
উত্তর
m × p
৩৪৯৪
Observe the following information and find the correct answer? i. loga(m)p=plogam ii.24=16 and log216=4 are synomymous iii. loga(m+n)=logam+logan
উত্তর
i and ii
৩৪৯৫
If c+d =11 and both c and d are positive integers, which of the following is a possible value for 5c +8d?
উত্তর
61
৩৪৯৬
In three years , Jerin will be three times as old as her daughter. Six years ago, her age was her daughter.Six years ago, her age was her daughter'sage squired. How old is Jarin.
উত্তর
42
৩৪৯৭
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory. There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times; and each sphomore's name , 1 time. What is the probability that a senior's name will be chosen?
উত্তর
38
৩৪৯৮
A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be ___.
উত্তর
26
৩৪৯৯
When one card is selected at random form a pack of 52 playing cards , the number of possible. selection is _____.
উত্তর
52
৩৫০০
The average temperature on Monday , Tuesday & Wednesday was 84° and for Tuesday, Wednesday and Thursday was 87°. If the temperature on Monday was 91° , find the temperature on Thursday?
উত্তর
100°