Jambmaths
| Maths Question | |
|---|---|
| Question 41 |
The time taken to do a piece of work is inversely proportional to the number of men employed. If ity takes 30 men to do a piece of work in 6days, how many men are required to do the work in 4 days |
| Question 42 |
Find the sum of the first 20 terms of the terms 8, 12, 16,-----,96 |
| Question 43 |
The weight W kg of a metal varies jointly as its length L metres and the squares of its diameter d metres. If W =140kg when d =$4\tfrac{2}{3}metres$and L =54. Find d in terms of W and L |
| Question 44 |
If the term of an AP is twice the third term and the sum of first terms is 42, find the common difference. |
| Question 45 |
An operation * is defined on the set of real numbers by $a*b=ab+2(a+b+1)$find the identity element |
| Question 46 |
Find the range of value of x for which $7x-3>25+3x$ |
| Question 47 |
f m = 3, p = –3 q =7 and r = $\tfrac{5}{2}$, evaluate $m(p+q+r)$ |
| Question 48 |
If $P=\left( \begin{matrix} 1 & 3 & 2 \\ 4 & 5 & -1 \\ -3 & 2 & 0 \\\end{matrix} \right)$find the determinant of matrix P |
| Question 49 |
A polynomial in x whose zero are –2, –1 and 3 is |
| Question 50 |
If M and N are two matrices defined by $M=\left( \begin{matrix} 1 & 3 & 2 \\ 4 & 5 & -1 \\ -3 & 2 & 0 \\\end{matrix} \right)$and$\left( \begin{matrix} 1 & -2 & 3 \\ 4 & -1 & 5 \\ 2 & -3 & -1 \\\end{matrix} \right)$,evaluate 2M – 3N |