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Given: 0.125x3 + 0.216y3 = 210 (0.5x)3 + (0.6y)3 = 210 ---(1) 0.25x2 + 0.36y2 = 10.30 0.25x2 + 0.36y2 = 10 + 0.30 (0.5x)2 + (0.6y)2 – 0.30 = 10 ---(2) As, a3 + b3 = (a + b)(a2 – ab + b2) ---(3) By analysing the (1), (2) and (3) a = 0.5x and b = 0.6y (3) => (0.5x)3 +(0.6y)3 = (0.5x + 0.6y)[(0.5x)2 + (0.6y)2 – 0.30] Put the respective values in the above expression 210 = (0.5x + 0.6y)(10) (0.5x + 0.6y) = 21
Select the appropriate meaning of the given idiom.
A hard nut to crack
Select the most appropriate antonym of the given word.
APPARENT
Select the most appropriate antonym of the given word.
MANIFEST
ENRAVISH - The classical dancer gave such a performance that enravished the audience.
Ubiquitous
Select the most appropriate ANTONYM of the given word.
DERELICT
You can ____________ interest rates on post office schemes to be ___________ in the next one year, if the rate upcycle continues.
Select the most appropriate synonym of the given word.
IMPROMPTU
All the window pains (A) / panes (B) were broken when I opened the house after almost ten days.
Newspaper readers are commonly disinterested [A]/ uninterested [B] in reports about poor people and social welfare programmes.
