The average age 9 members of a committee are the same as it was 2 years ago, because an old number has been replaced by a younger number. Find how much younger is the new member than the old number
I. x2 + 9x + 20 = 0, II. y2 + 5y + 6 = 0 to solve both the equations to find the values of x and y
In an examination 38% of students fail in English and 61% pass in Hindi and 23% fail in both. Find the actual failure percentage
In an examination, 47% failed in English and 54% failed in Mathematics. Find the pass percentage in both the subjects if 31% failed in both the subjects
If the price has fallen by 10% what percent of its consumption be: increased so that the expenditure may be the same as before
Find the greatest number which is such that when 697, 909 and 1227 are divided by it, the remainders are all the same
A man buys milk at a certain rate per liter and after adding water to it sells the mixture at the same rate. Find in what ration he much mix water to milk so as to gain 20% on his outlay
Arunkumar can play on violin
A man spends 10% of his income in house rent, 20% of the rest on his childrenβs education, 25% of the rest miscellaneous causes. If he now posses Rs. 1944 then his income is
If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was