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One is added to odd digit of the first number and one is subtracted from even digit of the first number and then both the digits are multiplied to obtain the second number. (5 + 1) x (8 – 1) = 6 x 7 = 42 (8 – 1) x (3 + 1) = 7 x 4 = 28 (5 + 1) x (4 – 1) = 6 x 3 = 18
Ram, Shyam, Rohan, Reeta, and Mukesh are five members of a family who are weighed consecutively, and their average weight is calculated after each membe...
Determine the value of a − b given that a + 3b = 18a and 3a + b = 30 .
The average of four numbers (z+16), (y+15), (y-25) and 1.2z is (y-6). If one more number which is 144 is added then the new average will be (y-1). The v...
In a school, there are 30 male students and 20 female students. The average marks of male students is 58 and that of female students is 62. Calculate th...
A is 75% more than B. C is 60 less than A. Average of A, B and C is 340. The ratio of B and C is 2:x. Find the value of x.
The average age of a class of 18 girls is 14 years. If 2 new girls having average age of 10 years join the class, then the average age of the class beco...
Ram scored an average of 5 goals per match in his first four games. However, he didn't score any goals in the following three matches. How many goals do...
The average expenditure of a man for the first 4 month is Rs.5000 and for the next 8 months is Rs.8000. If he saves 12000 in that year then find his ave...
The average of 18 numbers is 12. If each number is increased by 2, what will be the mean of the new set of numbers?
A chef prepared 6 different dishes, and the average rating for those dishes was 18 out of 100. For the next 4 dishes, the chef improved significantly, a...
