Case study (4 Marks)

Question 14 Marks

In a quiz contest, each candidate was asked 10 questions. 2 marks were awarded for each correct answer. 1 mark was deducted for each incorrect answer and no marks were given for any question that was not answered. The scores of Ajit, Binoy, Chetna and Dharam were +5, -3, -4 and +8 respectively.
1. Whose score was the least ?
(a) Ajit$\quad$(b) Binoy$\quad$(c) Chetna$\quad$(d) Dharam
2. What is the sum of the scores of all the four candidates ?
(a) +20$\quad$(b) +6$\quad$(c) +10$\quad$(d) 0
3. The sum of the predecessor of the lowest score and the successor of the highest score will be
(a) +4$\quad$(b) +6$\quad$(c) +10$\quad$(d) +16
4. If the scores of all the four candidates are represented on the number line, the score of which candidate will lie to the right of all the other scores ?
(a) Ajit$\quad$(b) Binoy$\quad$(c) Chetna$\quad$(d) Dharam

Answer

1. C$\quad$2. B$\quad$3. A$\quad$4. D

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Question 24 Marks

On 14 January 2024, the temperatures of four different cities A, B, C and D were recorded at 10 a.m. These were found to be $-13^{\circ} C ,+24^{\circ} C ,-2^{\circ} C$ and $+6{ }^{\circ} C$ respectively.
1. Which is the coldest city on that day ?
(a) A$\quad$(b) B$\quad$(c) C$\quad$(d) D
2. Which is the hottest city on that day ?
(a) A$\quad$(b) B$\quad$(c) C$\quad$(d) D
3. What is the difference between the temperatures of the hottest and the coldest cities ?
(a) $11^{\circ} C$$\quad$(b)$18^{\circ} C$$\quad$(c) $22^{\circ} C$$\quad$(d) $37^{\circ} C$
4. If the temperature of city A increases by $1^{\circ} C$ in each hour, what will be its temperature at 12 p.m. on the same day ?
(a) $-15^{\circ} C$$\quad$(b)$-11^{\circ} C$$\quad$(c) $-14^{\circ} C$$\quad$(d) $-12^{\circ} C$

Answer

1. A$\quad$2. B$\quad$3. D$\quad$4. B

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MATHS Case study (4 Marks)

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