Question
196 49 21 18 x 9 If ‘ x' is
resultant of the first row, what is the resultant of the second row? In each of the following questions two rows of numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the questions below the rows of numbers is to be answered. The operations of numbers progress from left to right. Rules : (i) If a two digit even number is followed by another even number the first one is to be divided by the second one. (ii) If an even number is followed by a prime number, the two are to be multiplied. (iii) If an odd number is followed by another odd number the two are be added. (iv) If a three digit number is followed by a two digit number which is the perfect square, the second number is to be subtracted from the first number. (v) If a three digit number is followed by a two digit number which is not the perfect square, the first number is to be divided by the second number.Solution
196 – 49 = 147 (Rule iv), Then, 147 ÷ 21 = 7 (Rule v) 18 × 7 = 126 (Rule ii), Then, 126 - 9 = 117 (Rule iv)
The average of four numbers is 68. When four more numbers are included, the average increases by 6. Find the average of the numbers included.
The average age of A and B is 15 years. If A is to be replaced by C, the average would be 14 years. The average age of C and A is 16 years. Find the age...
- A student calculates the average of five two-digit numbers. If one of them is reversed and the new average increases by 9, and all the numbers are consecut...
The average of 12, 33, and x is 25. What is the value of x?
Average weight of Shikhar, Rohit and Virat is 72 kg. Hardik joins the group and the average now becomes 65 kg. If Dhoni whose weight is 8 kg more than ...
In a family of 10, the men eat on average 65 kg of food and women eat on an average 45 kg of food. The men and women are equal in number. A woman...
An English-based company has 625 men and 625 female employees in a collaborative project. The average attendance of all employees is 74 calls per day. O...
The average weight of a family of 6 members is 72 kg. If the oldest member dies, the average weight of the family decreases by 1.6 kg. Find the weight o...
The average age of a class of 22 girls is 18 years. If 2 new girls having average age of 12 years join the class, then the average age of the class beco...
Find the average of five numbers a, b, c, d and e such that b = 20, and a is 20% more than that of ‘b’. ‘c’ is 10 less than &ls...
Relevant for Exams:
