Practice No. System Questions and Answers

• Find the median of 2, 8, 6, 3, 7, 12, 5, 12 and 13.
• How many prime numbers are there between 40 to 50?
• Find the third proportion of 22 and 11.
• Find the third proportion of 30 and 12.
• Find the third proportion of 35 and 14.
• Find the third proportion of 30 and 15.
• Find the third proportion of 32 and 16.
• Find the third proportion of 28 and 14.
• Find the third proportion of 38 and 19.
• Sum of squares of three consecutive numbers is 1325. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 974. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 1589. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 1730. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 1454. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 677. Find the sum of first and third number.
• Sum of squares of three consecutive numbers is 770. Find the sum of first and third number.
• When a number is increased by 20% then the number obtained is 36 less than thrice the original number. Find the original number.
• When a number is increased by 60% then the number obtained is 56 less than thrice the original number. Find the original number.
• When a number is increased by 30% then the number obtained is 34 less than thrice the original number. Find the original number.
• When a number is increased by 20% then the number obtained is 72 less than thrice the original number. Find the original number.
• What is the average of first 26 multiples of 2.6?
• What is the average of first 32 multiples of 3.2?
• What is the average of first 39 multiples of 3.9?
• What is the average of first 28 multiples of 2.8?
• What is the average of first 34 multiples of 3.4?
• What is the average of first 24 multiples of 2.4?
• Consider the following statement  1.There is a finite number of rational numbers between any two rational numbers. 2. There is an infinite number of rat...
• If x varies inversely as (y2 – 1) and is equal to 40 when y = 5 then the value of x and y = 7 is
• For a data set value of median and mean are respectively 8 and 5, then find the value of mode?
• Range of the given data 23,19,16,17,21,9,18,6.
• Which of the following number is rational number?
• The product of two co-prime numbers is 945 then find their LCM.
• Find the median of the given set? 8,9,17,10,23,11,7,21,15,6,3
• 5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 30 and ratio of the 4th and the 5th number is 2:3. If difference between the ...
• In a four digit number, the units place digit is one more than the hundreds place digit and the tens place digit is one less than the thousand place digit ...
• The sum of (p/q)+(q/r)+(r/s)+(s/t) = (239/60). The value of ‘q’ is one less than the value of ‘s’. The average of ‘p’ and ‘s’ is 4. The val...
• ‘Z’ is a two digit number in which the unit place digit is ‘P’ and the tens place digit is ‘Q’. The value of ‘P’ is smaller than the value ...
• There are five numbers A, B, C, D and E. The ratio between the numbers of B and D is (y+1) : 3 respectively. The number C is 12.5% more than the number E. ...
• How many 3-digit numbers are completely divisible by 5?