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Practice No. System Questions and Answers

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.
Divisor is 7 times of Quotient and 3 times of its remainder. If the remainder is 7. Find the dividend?
According to a plan, a team of farmers decided to harvest 208 cubic meters of rice in several days. In the first four days, the team fulfilled the daily as...
One baker house has to make 600 cakes and another one 750 cakes during the same period of time. In the first house, the order was ready 5 days ahead of tim...
Manas ordered 6 Levis jeans and some additional Blackberry jeans. The price of one Levis jeans was twice that of one Blackberry jeans. When the order was e...
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...
In a group of three persons, the weight of Amar is double of that of Akbar and half of that of Anthony. The average of their weight is 42. Find the differe...
How many Zeros can be formed by multiplying 10×20×30×40×…………….× 3000
If 193 × 199 + x makes the perfect square. Find the value of x
Find the Sum of all the even Factors of ‘240’
A monkey climbs a tower of height 60 m. It climbs 5m above in 1st minute and 4m below in 2nd minute. In how many minutes monkey will climb on the tower? ...
Find the value of 6 + 66 + 666 + 6666 +hellip;hellip;hellip;hellip;.. + n terms. 1. `(2)/(3) ((10 xx (10^(n)- 1))/9 - n)` 2. `(2)/(3) ((10 xx (10^(n)- 1))...
There are 5680 children in a school. For Republic day Parade they have to stand in such a manner that the number of rows is equal to number of columns. How...
The raw material cost of an article is 1/3 of its manufacture cost. If the cost of manufacturing is decreased in the ratio of 4 : 3 and the cost of its r...
The sides of a right angled triangle is 6, 8 and 10cm. Another triangle is formed by joining the mid points of all the sides of the triangle and in the sam...
In a factory of 50 labours, if the two labours left the job whose wages were 1120 and 1340 and two new labours join the factory which results in decrease i...
A farmer has 1457 cows and 3055 buffaloes. He wants to graze them in minimum number of groups in such a way that each group has only one type of animal and...
What least number should be subtracted from 5612 to make it exactly divisible by 25?
The cost of painting is Rs.180 per kilogram. One kilogram paint covers 30 square feet. How much it will cost to paint a cube having each side 14 feet?
A person had to multiply two numbers. Instead of multiplying by 46, the person multiplied by 64, and the product went up by 360. What is the raised product...

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