Question
Neha spends 80% of her monthly income. Next month, her
income increased by 20% while her expenditure increased by 15%. Due to this, her monthly savings were increased by 'R'%. Find the value of 'R'. (Answer should be rounded off to two decimal points)Solution
ATQ, Let the initial monthly income of Neha be Rs. '100p'. Monthly expenditure of Neha = 80% of 100p = (0.80) × 100p = Rs. '80p' Monthly savings of Neha = 100p - 80p = Rs. '20p' New monthly income of Neha = 120% of 100p = (1.20) × 100p = Rs. '120p' New monthly expenditure of Neha = 115% of 80p = (1.15) × 80p = Rs. '92p' New monthly savings of Neha = 120p - 92p = Rs. '28p' Increase in monthly savings = 28p - 20p = Rs. '8p' Required percentage = (8p/20p) × 100 ~ 40%
A sum of Rs. 4,000 becomes Rs. 6,912 in 3 years at a certain rate of interest compounded annually. What is the rate of interest?
Which of the following may be the code for ‘lessons War’?
- In a 300-metre race, ‘Aman’ beats ‘Bhanu’ and ‘Charu’ by 30 metres and 60 metres, respectively. If ‘Bhanu’ and ‘Charu’ ran a 180 metre ...
In a certain code language, ‘201511920’ is related to 'TOAST' in the same way ‘321181851420’ is related to which of the following words?
...When entering text within a document, the Enter key normally pressed at the end of every
Which device connects a computer to a telephone line for internet access?
- The volume of a sphere is 288π cm³. What will be its surface area?
- The ratio between cost price, labelled price and the selling price of a product is 4:10:6. If a profit of Rs. 240 is gained on the sale, find out how much ...
- Priya bought a gadget at 40% discount on its listed price and later sold it by offering a 20% discount on the listed price. What was her profit percentage?
From the given answer figures, select the one in which the question figure is hidden / embedded(rotation is not allowed).
Relevant for Exams:
