l+ b+ h = 20 Diagonal =12 Diagonal = √ l2+b2+h2 (l+ b+ h)2 = l2+b2+h2+ 2(l b+ b h +h l) (20)2 = (12)2 +2(l b+ b h +h l) 400 = 144 +2(l b+ b h +h l) 2(l b+ b h +h l) = 400-144=256 Total surface area of cuboid =256
In a job fair, 50% of the people are graduates, one fifth of them are post graduates and rest are double graduates. If three-fourth of the graduates, 60...
If X = 75% of Y and Y = 125% of Z, then find the ratio of X to that of Z.
The value of A’s car is depreciating by 45% every year whereas the value of his house is appreciating by 10% each year as compared to the previous yea...
If 20% of (A + B) = 30% of (A – B), then what percentage of B is equal to A?
If radius of a sphere is decreased by 48%, then by what percent does its surface area decrease?
In village P, the number of male voters is 45% more than the number of female voters. The ratio of male voters in village P to village Q is 8:5. If the ...
A scored 40% marks and failed by 40 marks whereas B scored 70% marks, which was 80 more than the passing marks of the examination. Find the total marks ...
0.5 is what percentage of 20?
'Aman' is 4 years younger than 'Bharti', and 'Bharti' is 8 years younger than 'Chetna'. If the ratio of 'Aman's age 8 years from now to 'Chetna's age 6 ...
A spent 30% of his monthly income on study and 60% of the remaining on rent. If amount spent on rent is Rs. 840, then find the amount spent on study
