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a=81 and b =1 (a4-b4) = (a²+b²) (a+b) (a-b) ((81)4 – 14)/82×80× (38+1) = ((81)2 +1) (81+1) (81-1) / 82×80× (38+1) = ((34)2+1) ×82×50 /82×80× (38+1) = (38+1)/ (38+1) =1.
A factory produces three types of products: A, B, and C. Initially, the production ratio of A to B to C is 3:4:5. The total number of products produced ...
L’s income is 125 percent of M’s income and L’s expenditure is 120 percent of M’s expenditure. If L’s income is 180 percent of M’s expenditu...
A right prism has a square base with side of base 4 cm and the height of prism is 9 cm. The prism is cut in three parts of equal heights by two planes p...
The ratio between two numbers is 7:8. If each number is increased by 9, the ratio between then become 10:11, find the difference between numbers.
In an alloy of three metals, ratio of the quantity of gold, silver and platinum is 5:6:4, respectively. If total quantity of silver and platinum togethe...
A company produces three types of products: X, Y, and Z. Initially, the production ratio of X to Y to Z is 5:7:8. The total production of these three pr...
The ratio of males and females in a zoo is 4:5 respectively and the percentage of children among males and the percentage of children among females are ...
The ratio of the speed of the stream to the speed of the boat in still water is 3:7. If a distance of 280 km is covered downstream in 4 hours, determine...
Three numbers are in ratio 4:5:7. If the sum of the squares of those three numbers is 360 then find the sum of the three numbers.
