Question
The cost of 3 notebooks and 2 erasers is Rs.47, and the
cost of 5 notebooks and 4 erasers is Rs.83. What is the total price (in Rs) of 2 notebooks and 3 erasers?Solution
let the price of one notebook = x and the price of one eraser = y ATQ- 3x + 2y = 47 .... (1) 5x +4y = 83 ......(2)  Eq (1) multiplied by 2 6x +4y = 94     … (3) Now subtract Equation (2) from Equation (3): 6x-5x = 94-83 x = 11 put the value of x in eq (1) y =7 now price of 2 notebook + 3 erasers =2× 11+3×7= 43
Consider the following statements:
I. India’ s overall ( merchandise plus services) exports increased from USD 52. 8 billion in June 2021 t...
What is the distinctive feature of the newly discovered lizard species, Agasthyagama edge or northern kangaroo lizard?
AS the part of India’s presidency of SCO, the B2B Conference & Expo along with National Arogya Summit was held in?
What is the estimated financial outlay of India’s National Green Hydrogen Mission, intended to support R&D and production in green hydrogen up to FY 2...
The National Cadet Corps (NCC) is observing the ___ anniversary of its raising on, November 28, 2021.
Which bank became the first Gramin Bank in India to introduce a solar-powered ATM van?
Which Indian city houses all three institutions: IIT, IIM, and AIIMS?
Which one of the following is the largest national park?
India aims to reach net-zero emissions by which year?
Who has been appointed as the National Ambassador for UNICEF India?
Relevant for Exams:
