Скачать или смотреть 1001 SOLVED PROBLEMS IN ENGINEERING MATHEMATICS | Day 5(206-210) Percentage Problem, Arithmetic Mean

206. A bookstore purchased a best-selling price book at P200.00 per copy. At what price should this book be sold so that, giving a 20% discount, the profit is 30%?
A. P450
B. P500
C. P357
D. P400

207. Jojo bought a secondhand Betamax VCR and then sold it to Rudy at a profit of 40%. Rudy then sold the VCR to Noel at a profit of 20%. If Noel paid P2,856 more than it cost to Jojo, how much did Jojo pay for the unit?
A. P4,000
B. P4,100
C. P4,200
D. P4,300

208. In a certain community of 1,200 people, 60% are literate. Of the males, 50% are literate and of the females 70% are literate. What is the female population?
A. 850
B. 500
C. 550
D. 600

209. A merchant has three items on sale, namely a radio for P50, a clock for P30 and a flashlight for P1. At the end of the day, he sold a total of 100 of the three items and has taken exactly P1,000 on the total sales. How many radios did he sell?
A. 16
B. 20
C. 18
D. 24

210. The arithmetic mean of a and b is
A. (𝑎+𝑏)/2
B. √𝑎𝑏
C. 𝑎𝑏/2
D. (𝑎−𝑏)/2