Question
HCF of two numbers 40 and 90 can be expressed in the
form of (30m – 110) whereas LCM of these two numbers can be expressed in the form of (60n – 30). Find the ratio of (n × m).Solution
HCF of 40 and 90 = 10 LCM of 40 and 90 = 360 According to the question, => 30m – 110 = 10 => m = 4 And, 60n – 30 = 360 => n = 6.5 Required answer = n x m = 26
If (a + b) = 7 and ab = 9, then find the value of (a2 + b2).
If x2 – xy + y2 = 16 and x4 + x2y2 + y4 = 320 then find x2 + xy + y2...
If (a - b - c) = 6, and (ab - bc + ca) = 117, then find the value of (a 2 + b 2 + c 2 )
If (3x - y) = 3, xy = (2/3), then find the value of {x3 - (y3/27)}
If (a3+1)/(a+1) = (a3-1)/(a-1) and a ≠ 1, -1. Find the value of 'a'
What will come in the place of question mark (?) in the given expression?
?2 = (392 × 224) ÷ (112 × 28) + 62
If 9x² + y² = 37 and xy=2, x, y>0, then the value of (27x³ + y³) is:
If 0.125x3 +0.216y3 = 210 and 0.25x2 + 0.36y2 = 10.30 then find the value of 0.5x + 0.6y.
Simplify:
7x + 9y - [(14x + 5y) - (5x + 3y) + 4y] - 5x
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