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Class 11 Mathematics Chapter 14 Mathematical Reasoning Quiz 25 (25 MCQs)

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1. There are 35 people in a group. There are 12 school girls, 10 school boys, 5 senior citizens and 8 babies in the group. The organizer of the group wants to select a school girl or a school boy as leader of the group. In how many ways can he do so?
2. If no feasible solution exists, the LPP
3. Lisa is organizing a bake sale to raise funds for a charity. Her revenue from selling y cookies is given by the equation R = 1.5y-5. What does the 1.5 in the equation likely represent?
4. Statement or Not Statement:7-4 = 2
5. Javier wanted to make a profit of $ 80 for selling the 4 vases he had made. He had spent$ 12 for materials. Since he planned to charge the same price for each vase, he used thefollowing equation to determine x, the price he would charge:4x-12 = 80How much did Javier plan to charge for each vase?
6. Logical-mathematical learners are good at:
7. Which of the following is an example of a counterexample?
8. Let R be a relation on the set N of a natural numbers defined by n R m $\Longleftrightarrow$
9. Maya wants to divide a 3/4 pound box of trail mix into small bags. Each bag will hold 1/12 pound of trail mix. How many bags of trail mix can Maya fill?
10. The quantity which is to be maximized or minimized is called
11. Round the area of the Mandelbrot set, approximately 1.5065916514855 square units, to the nearest thousandth.
12. Your bank account has $ 250 at the beginning of the week. You deposited $ 100 and wrote a check for $ 175. What is the new balance for the account?
13. The arithmetic mean of a set of 10 numbers is 20. If each number is first multiplied by 2 and then increased by 5, then what is the mean of new numbers?
14. State whether the statement is true or false:3-8 >-1
15. ..... mangos are sweet.
16. Kevin has 100 forms to complete and can finish 20 of them per hour. The number of forms(f) that Kevin still has to complete after h hours is represented by the following function.f = 100-20hDarla has more forms to complete than Kevin and can complete more per hour.Which of the following functions could represent the number of forms (f) that Darla needs tocomplete after h hours?
17. The implication "if p then q" is false when
18. 15 pens cost ₹ 90. Find cost of 25 pens.
19. Marc had $ 572.18 in his checking account. After writing a check, he had $ 434.68.Which of the following equations could be used to find the amount of the check (c)?
20. An even number divided by an odd number equals a whole number.
21. Malacca has been attacked by the Portuguese on 1511.
22. A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. The probability that at least one of these is defective is
23. All real numbers are complex numbers.Is it s statement?
24. The perimeter of a square is 32 cm. Find area.
25. What was Edmundo's mean score for a round of golf in August if his scores for each round were 78, 86, 82, 81, 82, and 77?
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