Question
The ratio of two numbers is 21 : 37 such that the
difference between them is 304. If m be the smaller of the two numbers, then find the sum of the digits of m.Solution
Let the numbers be 21x and 37x. Given: 37x - 21x = 304Â 16x = 304Â x = 19 Smaller number m = 21x = 21 x 19 = 399 Sum of digits of 399 = 3 + 9 + 9 = 21
The income of B is 85% of A and income of C is Rs 3600 more than that of B. The average income of all three together is Rs. 8400. A and B spend 50% of t...
Average age of company A is 25 years and average age of both companies A and B is 17 years. If the ratio of number of employees in company A and B is 3:...
The average number of books on history, polity and geography in a library is 140, and the average number of books on history and geography is 150. If th...
A gift box has 10 bangles. The average weight of the first 4 bangles is 56gms and the average weight of the remaining 6 bangles is 57 gms. Tell the aver...
The average height of 14 students in a group is (x + 12). If the average of the first seven students is 140 cm and the average of the remaining seven st...
In an examination, the average marks obtained by the students is 60. After correcting the quantitative mistakes, the average of 100 students is reduced ...
In an examination, the average marks obtained by the students is 75. After correcting the quantitative mistakes, the average of 100 students is reduced ...
The average of 41 consecutive odd numbers is 49. What is the largest number.
Find the average of the numbers 12, 14, 18 and 26
The average age of 13 girls is 40 years. If the age of one more girl is added the average decreases by half a year. What is the age of new girl?
Relevant for Exams:
