Question
Rohan bought 50 candies for Rs. 60 and he sold them in
such a manner so that selling price of 30 candies is Rs. 54. Find the value of 4(P + 15) if the profit percent earned by Rohan is 'P%'.Solution
ATQ, Cost price of 1 candy = 60/50 = Rs. 1.20 Selling price of 1 candy = (54/30) = Rs. 1.80 Profit earned = 1.80−1.20=Rs. 0.60 So, 'P' = (0.60/1.20) × 100 = 50% P = 50 Required value = 4×(50+15) = 4×65 = 260
Find the least number of four digits which is exactly divisible by 6, 8 and 16?
The L.C.M of a² – 2a – 3 and a³ + a² + a + 1 isÂ
Three numbers a, b and c are co-prime to each other such that ab = 34 and bc = 51. Find the value of (a + b + c).
The greatest number of four digits which when divided by 5, 7, 9 leave remainders 3, 5, 7 respectively is:
A number is three times another number and their HCF is 8. What is the sum of the squares of the numbers?
The HCF of a^6 - 1 and a^4+ 2a^3- 2a-1 is
The sum of two numbers is 126 and their HCF is 14. Total number of such pairs of numbers is?  Â
The LCM of two numbers is 40 times its HCF. If the product of the numbers is 1440, find their HCF.
- The LCM and HCF of two integers are 540 and 12 respectively. If one of the integers is 90, find the second integer.
The ratio of two number is 13 : 10 and their HCF is 25. then find out their LCM?
Relevant for Exams:
