App Logo

No.1 PSC Learning App

1M+ Downloads
Four bells ring simultaneously at starting and an interval of 6 sec, 12 sec, 15 sec and 20 sec respectively. How many times they ring together in 2 hours?
The sum of two numbers is 40 one number is 10 more than the other what are the numbers?
The 21st term of the AP whose first two terms are –3 and 4 is:
The mean of 10 numbers is 7 If each number is multiplied by 10 then the mean of new set of numbers is
A shopkeeper marks his goods at a price such that after giving a discount of 25%, he gains 20%. If the cost price of the article is Rs. 460, what is its marked price?
A mobile phone is sold for Rs 5060 at a gain of 10%. What would have been the gain or loss per cent if it had been sold for Rs 4370​?
Arrange the following in descending order: 2/9, 2/3, 8/21
If 20% of a number is 12, what is 30% of the same number?
A man got a 10% increase in his salary. If his new salary is ₹ 1,54,000, find his original salary?
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:
A 60 liter mixture of milk and water contains 10% water. How much water must be added to make water 20% in the mixture?
The ratio of income of two workers A and B are 3: 4. The ratio of expenditure of A and B is 2: 3 and each saves Rs 200. Find the income of A and B.
A bag contains Rs 410 in the form of Rs 5, Rs 2, and Rs 1 coins. The number of coins is in the ratio 4: 6: 9. So, find the number of 2 Rupees coins.
For 9 innings, Boman has an average of 75 runs. In the tenth inning, he scores 100 runs, thus increasing his average . His new average is
The average monthly salary of Sailesh is Rs 75,000 for 12 months (from January to December). If the salary that he receives in January and February is removed, the average salary falls by 15,000. What is the average of the salaries received in January and February?

In the following number, replace x by the smallest number to make it divisible by 3. 

35x64.

In an election between two candidates, the candidate who gets 30 % of the votes polled is defeated by 15,000 votes. What is the number of votes polled by the winning candidate?
The simplified value of {5/4 of (7/3 ÷ 7/5) - 17/12} + 1/9 ÷ 7/3 + 2/7 + 1/6 is
2 men and 5 women can do a work in 12 days. 5 men 2 women can do that work in 9 days. Only 3 women can finish the same work in-
By selling an article at 3/4th of the marked price, there is a gain of 25%. The ratio of the marked price and the cost price is-
The Roman Numeral conversion of the number 999 is :
The capital letter D stands for :
What is the value of the ' L ' letter in numbers ?
The cost of a machine is estimated to be increasing at the rate of 10% every year. If it costs Rs. 12000 now, what will be the estimated value after 3 years ?
Meena, Arun and Gopu divide a sum of Rs.6000 in such a way that Arun gets 1/ 2 of what Meena gets and Gopu gets 3/4 of what Arun gets. Then what is Arun's share ?

1034\frac34 + 235\frac 35 -5110 \frac{1}{10}   = ? 

65 - 5 x 7 + (8 x 4 - 2 - 1) = ?
The ratio of ages of Anil and Ashima is 3:5 .The sum of their ages is 48 years. What is the age of Ashima ?
A and B together can finish a work in 16 days, while B can do the same work alone in 24 days. In how many days can A alone finish the work ?
A train 220 m long is running at 30 km/hr. How long will it take to cross a bridge 80 meters long ?
A and B are two cities. A man travels from A to B at a speed of 10 km/hr. and returns back at the speed of 30 km/hr. Find his average speed for whole journey.
The smallest perfect square which is exactly divisible by 2, 3, 4, 5 and 6:
Two numbers are in the ratio 1:2 .When 4 is added to each, the ratio becomes 2:3.Find the numbers?
Which is the smallest?
What is the largest prime number?
The average age of 20 students is 12 years. If the teacher's age is included ,average increases by one. The age of the teacher is
Harry and Larry can together plough the field in 5 days. Harry alone takes 8 days to plough the same field. In how many days can Larry alone plough the field?
What is the time taken by a train running at 54 km/hr to cross a man standing on a platform, the length of the train being 180 m?
ഒരു പുസ്തകത്തിൻ്റെ അടയാളപ്പെടുത്തിയ വില 65 രൂപ. ഇത് 15% കിഴിവിൽ വിൽക്കുന്നു. പുസ്തകത്തിൻ്റെ വിൽപ്പന വില കണ്ടെത്തുക
Eugene reads two-fifth of 85 pages of his lesson. How many more pages he needs to read to complete the lesson?
The enrollment in a school increases from 1200 to 1254.Determine the percent increase in enrollment?
Simplify (4-5)-(13-18+2)
Which of the following numbers give 240 when added to its own square?
ഒരു സംഖ്യയുടെ 2/5 ൻ്റെ 5/8 ൻ്റെ 4/7 = 22, എങ്കിൽ സംഖ്യ ഏത്?
The sum of the least number of three digits and largest number of two digits is

30+31+25 \sqrt {{30 }+ \sqrt {{31}+\sqrt{25}}}

(23)2=4x(2^3)^2=4^x.

 എങ്കിൽ 3x3^x ന്റെ വില എന്ത്?

3x+8=272x+13^{x+8}=27^{2x+1} x ന്റെ വില കാണുക

3n=2187\sqrt{3^n} = 2187,  n -ന്റെ വില കാണുക?

310×272=92×3n3^{10}×27^{2}=9^{2}×3^{n}

n ന്റെ വിലയെന്ത്?