Ondo State Promotional Joint Exam 2017 Mathematics Expo Answer

Ondo state Joint Promotional mathematics OBJ, THEORY/ESSAY Questions and Answer – 2017 Expo Runz

MATHEMATICS THEORY:

INSTRUCTION: Answer Ten (10) Questions in All, Answer all (5) Question in PART 1 & Any other (5) From PART 2.

Part 1

(4) 2,000 people were asked which make of cars they like to have, 300 says Peugeot (P) only, 500 says Toyota (T) only, 450 says Datsun (D) only, 200 says Peugeot and Toyota, 180 says Peugeot and Datsun, 250 says Toyota and Datsun. If 420 says none of this cars,

(a) Draw a Venn diagram to illustrate the information.

(b) how many people like the 3 types of car?

(c) how many people like at least 2 of this car?

ANSWER FOR NO.1

…………………………………….

(b.) 2000=300+500+450+180-x

+250-x+200-x+x+420 2000=1250+1050-2x

2000=2300-2x

2x=2300-2000

2x=300

x=300/2=150

c.)No of people that like at least

two of there cars are: 200-x+250+x+180-x+x

50+100+30+150=330//

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