Question
A bag contains 20 rupees note, 50 rupees note and 100
rupees note in the ratio 5:7:2. If the total amount in the bag is Rs 2,600, find the average number of 20 rupees note and 50 rupee note.Solution
Ratio of values of the notes = 5 ×20∶7×50∶2 ×100 = 2:7:4 Value of 20 rupees note = 2600×2/13= Rs. 400 Value of 50 rupees note = 2600×7/13= Rs. 1400 Value of 100 rupees note = 2600×4/13= Rs. 800 Number of 20 rupees note = 400/20 = 20 Number of 50 rupees note = 1400/50 = 28 Number of 100 rupees note = 800/100 = 8 Average of 50 & 20 rupee note = (20+28)/2 = 24
Find the area of the triangle whose vertices are (3, 6), (– 3, 2) and (4, 1).
Six women and two men can complete a task in 10 days. If the efficiency of a woman is twice that of a man, how many days will it ...
An item priced at Rs. 1,500 has a markup of 36% on its cost price and is sold with two successive discounts: the first being 15% ...
Rs. 8000 was lent in two parts, first part at 5 % p.a. and the remaining at 4% p.a. If the total simple interest from both the parts in 4 years was Rs. ...
Calculate the total sum of all numbers between 101 and 149 that are divisible by 5.
A laptop was sold for ₹40,500, resulting in a 10% loss. If it had been sold for ₹52,200 instead, what would the profit percentage have been?
What is the mean of the following data given below:
3,7,9,5,11,13,8,12,15,12,4
If p = 50 - q - r and pq + r(q + p) = 816 then find the value of (p2Â + q2Â + r2) .
- What is the name of the technology that provides a secure and encrypted connection over an untrusted network?
A triangle ABC is inscribed in a circle. The tangent at A meets the extended sides BC and AB at points P and Q, respectively.
If ∠ACB = 30° an...
Relevant for Exams:
