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= (3a + b)3 = (3a)3 + b3 + 3 × (3a)2 × b + 3 × 3a × b2 = 27a3 + b3 + 27ba2 + 9ab2 So, coefficient of ‘b2’ = 9a
The ratio of males and females in a zoo is 5:6 respectively and the percentage of children among males and the percentage of children among females are ...
The ratio of heartbreak to emotions is 2:3:4:5 The price of heart is inversely proportional to the square of emotions. If there is a loss of Rs 1420 due...
The sum of three numbers is 212. If the ratio of the first to the second is 3:5 and that of second to the third is 7:10 then the second number is?
In a factory, the ratio of number of male to female employees are 7: 18. If 27 male employees and 12 female employees left the factory, then the ratio b...
If A : B = 9:3 and A is 24 more than B then find the sum of A and B.
Determine the fourth proportional of 33, 28 and 132.
Two numbers are respectively 60% and 30% more than a third number. Find the ratio of two numbers.
Number of faculties in Physics and Biology in an institute is in the ratio of 3:5 respectively. If 75 more faculties join Physics, while 40 more faculti...
Two numbers are respectively 30% and 40% more than a third number. Find the ratio of two numbers.
A man gives 2/5 of his property to his son, 1/8 in charity and 3/7 to his daughter. If he had ₹3250 left, then find the money given by him in charity.
