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Let price of one pen = x Let price of one notebook = y Mohit bought 3 pens and 6 notebooks by paying an amount of ₹180. 3x + 6y = 180 3x = 180 – 6y x = (180 – 6y) ÷ 3 x = 60 – 2y --------- (i) Sudesh bought 5 pens and 2 notebooks by paying an amount of ₹116. 5x + 2y = 116 Putting the value of x from equation (i) 5(60 – 2y) + 2y = 116 300 – 10 y + 2y = 116 300 – 8y = 116 300 – 116 = 8y 184 = 8y y = 23 Mohit spend on buying notebooks = 6y = 6 x 23 = 138.
What does the "Word Count" feature in a word processing software typically provide?
A person, 'Q', uses 40% of their monthly income on food and then spends 60% of what is left on rent. After covering these expense...
I). p 2 – 5p – 126 = 0
II). q 2 + 9q – 90 = 0
Income of A is twice the income of B. B and A spend 55% and 65% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.
28, 52, 84, 124, 172, ?.
315 people went to a park. The number of men is 25 more than the number of women and the number of adults is 15 more than the number of children. How ma...
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Ayush invested a certain amount at a compound interest rate of 20% per annum, compounded annually, for 2 years and earned Rs. 2,3...
Three colleagues, M, N, and O, have an average age of 27. Ten years ago, their ages were in the ratio of 4:6:7. What is the average age of M and N today?
A triangle has sides 7 cm, 24 cm, and 25 cm. A circle is inscribed in the triangle. What is the area of the triangle not covered by the circle?
