Practice No. System Questions and Answers

• Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s father�...
• In a class, 1/3 of the students are girls and rest are boys. If 3/5 of the girls and 1/5 of the boys are absent, what part of the total number of students ...
• A girl found the answer for the question “subtract the sum 1/4 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of error i...
• In a class, 2/5 of the students are girls and rest are boys. If  4/9 of the girls and 1/3 of the boys are absent, what part of the total number of stu...
• In a tennis tournament, each player played one game with all the other players. How many players participated in the tournament if they played 300 games in...
• Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Samar...
• A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
• Rs 720 is to be divided among P, Q and R so that P gets 3/5 of Q’s share and R gets 1/3 of P’s share. Share of R is:
• A farmer wants to divide Rs 2,81,800 between his sons , who are 17 and 19 years old respectively, in such a way that the sum divided at the rate of 12% per...
• The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
• If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
• The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
• 22           44           176         1078       8448...
• 16           4              2              1.5          1              1.875...
• 15           15           60           540         8650...
• 4096         2048       514      64           4...
• 4              14           44           124         404...
• If a = 12, b = 23, c = 34, ............... z = 2627 . How many zeros are formed after multiply a × b × c × ........... × z?...
• Find a positive number which when increased by 26 is equal to 120 times the reciprocal of the number?
• The remainder obtained when (47³ + 35³) is divided by 41 is 
• The numerator of a fraction is 9 less than its denominator. If the numerator is decreased by 4 and the denominator is increased by 2, then the denominator ...
• Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long?
• One-fourth of a number is 70. What will 40% of that number? ...
• Rs 625 is to be divided among A, B and C so that A gets 2/9 of B’s share and C gets 3/4 of A’s share. Share of C is:
• How many Zeros can be formed by multiplying 10 times; 20 times; 30 times; 40 times; ...............times; 2000?
• find the value of 5+55+55+555+…………..+ n terms
• The numerator of a fraction is 7 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 5, then the denominator ...
• In a group of three numbers first is double of second and half of third. The average of three numbers is 42. Find the difference between the first number a...
• The ratio between two numbers is 2:3 and the sum of their squares is 2197. The numbers are:
• The sum of three consecutive natural numbers each divisible by 5, is 255. The largest among them is:
• Gaurav ate in a restaurant and got a membership discount of 30% on the original bill amount but he has to pay 9% as service tax and 8% service charge on th...
• The cost of 2 mouse and 3 keyboard is Rs.150 and that of 3 mouse and 2 keyboard is Rs.120. Find the cost of 5 mouse and 2 keyboard?
• A sum of money is shared in the ratio of 2:3:5. The smallest share is divided again in the ratio of 1:3. What fraction of the total sum of money is the lar...
• When N is divisible by 5 the remainder is 2. What is the remainder, when n³ is divided by 5?
• What is the value of 1² + 3² + 5² + 7² + 9² ................ 19²?
• If a number is decreased by 30 and divided by 12, the result is 20. What would be the result if 200 is subtracted from that number and then it is divided b...
• 120 is divided into two parts in such a way that the sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much perce...
• In an examination, the number of those who have passed and the number of those who failed were in the ratio of 40 : 7. If 7 more had appeared and the numbe...
• When a number is divided by 114, remainder is 82. What will be the remainder when the cube of the number is divided by 19?
• A number when divided by 315 leaves remainder 46 and the value of quotient is 7. Find the number.