The rate of consumption of petrol by a vehicle varies dir...
The rate of consumption of petrol by a vehicle varies directly as the square of the distance covered. If 4 litres of petrol is consumed on a distance of 15km. how far would the vehicle go on 9 litres of petrol?
2212km
30km
3312km
45km
Correct answer is A
R α D2
R = D2K
R = 4 Litres when D = 15cm
thus; 4 = 152k
4 = 225k
k = 4225
This gives R = 4D2225
Where R = 9litres
equation gives
9 = 4D2225
9 x 225 = 4d2
D2 = 9×2254
D = √9×2254
= 3×152
= 2212km
If p∝1q, which of the following is true?...
In the diagram above, what is the size of angle ACB? ...
Let = (1001) p = \(\begin{pmatrix} 2 & 3 \\ 4 & 5 \end{pma...
Number 1 2 3 4 5 6 No of times 25 30 45 28 40 32 A die rolled 200 time...
Given that √2=1.414, find without using tables, the value of 1√2...
Find the eleventh term of the progression 4, 8, 16........
In the diagram, QTR is a straight line and < PQT = 30o. find the sin of < PTR...
Find the simple interest rate percent annum at which N1000 accumulates to N1240 in 3 years. ...