Mathematics and Pedagogy MCQ Questions with Answer | ||||
Quiz-1 | Quiz-2 | Quiz-3 | Quiz-4 | Quiz-5 |
Quiz-6 | Quiz-7 | Quiz-8 | Quiz-9 | Quiz-10 |
Quiz-11 | Quiz-12 | Quiz-13 | Quiz-14 | Quiz-15 |
Q31. A bicycle originally cost Rs. 100 and was discounted 10%. After three months it was sold after being discounted 15%. How much was the bicycle sold for?
(a) Rs. 55.50
(b) Rs. 95.25
(c) Rs. 76.50
(d) None of these
Answer: (c) Rs. 76.50 Solution: Sold price of by-cycle = $100\times \frac{\left( 100-10 \right)}{100}\times \frac{\left( 100-15 \right)}{100}=76.50$ Trick: Sold price after = $\mathrm{C}.\mathrm{P}\times \frac{\left( 100-\mathrm{x} \right)}{100}\times \frac{\left( 100-\mathrm{y} \right)}{100}\times \frac{\left( 100-\mathrm{z} \right)}{100}$ |
Q32. Which of the following fraction is the smallest?
$\frac{7}{6}, \frac{7}{9}, \frac{4}{5}, \frac{5}{7}
\\
\left( \mathrm{a} \right) \,\,\frac{7}{6}
\\
\left( \mathrm{b} \right) \,\,\frac{7}{9}
\\
\left( \mathrm{c} \right) \,\,\frac{4}{5}
\\
\left( \mathrm{d} \right) \,\,\frac{5}{7}$
Answer: $\left( \mathrm{d} \right) \,\,\frac{5}{7}$ Solution: LCM of 6, 9, 5, 7 = 630; Now $630\times \frac{7}{6}=735$ ; $630\times \frac{7}{9}=490$; $630\times \frac{4}{5}=504$; $630\times \frac{5}{7}=450$ (Smallest) |
Q33. Which of the following fraction represent the given figure?
(a) $2\frac{1}{3}$
(b) $2\frac{2}{3}$
(c) $2\frac{1}{2}$
(d) $3\frac{1}{3}$
Answer: (c) $2\frac{1}{2}$ Solution: $1+1+\frac{1}{2}=\frac{5}{2}=1\frac{1}{2}$ |
Q34. LCM of two numbers is 225 and their HCF is 5. If one number is 25, the other number will be:
(a) 5
(b) 25
(c) 45
(d) 225
Answer: (c) 45 Solution: X = $\frac{\mathrm{HCF}\times \mathrm{LCM}}{\mathrm{Given} \mathrm{Number}} |
Q35. Simplify: $1+\frac{2}{1+\frac{3}{1+\frac{4}{5}}}$
(a) $\frac{7}{4}$
(b) $\frac{4}{7}$
(c) $\frac{7}{5}$
(d) $\frac{3}{7}$
Answer: (a) $\frac{7}{4}$ Solution: 1st ⇒ $1+\frac{4}{5}=\frac{9}{4}$; 2nd ⇒ $1+\frac{3\times 5}{9}=\frac{8}{3}$; 3rd ⇒ $1+\frac{2\times 3}{8}=\frac{7}{7}$ |
Q36. If the average marks of three batches of 55, 60 and 45 students respectively are 50, 55 and 60, then the average marks of all the students are:
(a) 54.68
(2) 53.33
(b) 55
(c) None of these
Answer: (a) 54.68 Solution: The required average mark = $\frac{55\times 50+60\times 55+45\times 60}{55+60+45}=54.6875$ |
Q37. A milkman bought 70 litres of milk for Rs. 630 and added 5 litres of water. If he sells it at Rs. 9.00 per litre, his profit percentage is :
(a) 8%
(b) 7%
(c) 8%
(d) $7\frac{1}{7}
Answer: (d) $7\frac{1}{7} Solution: CP of 75 liters of mixture of milk and water = 630 SP of 75 liters of mixture of milk and water = 9 × 75 = 675 Gain = 675 – 630 = 45 Gain per cent = $\frac{45}{630}\times 100=7\frac{1}{7}$ |
Q38. The nature of mathematics is
(a) Ornamental
(b) Logical
(c) Difficult
(d) Not for common
Answer: (b) Logical |
Q39.Which point is not included in the professional skills of a teacher?
(a) Knowledge of self
(b) to experiment well
(c) Dedication
(d) Satisfactory knowledge of the social matter
Answer: (d) Satisfactory knowledge of social matter |
Q40. The most possibility of guessing is
(a) In the matching terms
(b) In true false terms
(c) In multiple choice terms
(d) None of these
Answer: (b) In true false terms |