Find out the wrong number in the series:
The given is in following pattern:
2
2 + 62 = 38
38 + 52 = 63
63 + 42 = 79
79 + 32 = 88
88 + 22 = 92 ≠ 94
92 + 12 = 93
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1. A sum of Rs. 2600 is lent out in two parts in such a way that the simple interest on one part at 10% per annum for 5 years is equal to that on another part at 9% per annum for 6 years. The sum lent out at 9% is
2. What will come in the place of the question mark ‘?’ in the following question? (4)3 + (9)3 – (11)2 – ? = (24)2
3. What should come in place of question mark (?) in the following question? 12.89 - 0.47 of (7.28 - ?) + 2.47 × 3.02 = 18.64
4. What will come in place of question mark ‘?’ in the following question? 2.75 of 3.25 – 1.75 + 2.5 - 3.25 = (?) × 5
5. What should come in place of question mark ‘?’ in the following question? \(\frac{9}{5} \times 2\frac{3}{4} \div \frac{5}{8} + \frac{9}{2} \times \frac{5}{7} - \frac{{18}}{{25}} =\: ?\)
6. A monkey is climbing a tree. In one jump he could climb up to 20% of the total height of the tree, but he also slips down 60% of the height he had jumped. Find the height from the ground at which the monkey will be after 3 jumps. If the total height of the tree is 200 m.
7. What should come in place of question mark ‘?’ in the following number series? 5, 12, 39, 200, 1407, ?
8. The letters of the word ‘PROBABILITY’ are arranged in all possible ways. The chance that two B’s and also two I’s occur together is
9. What approximate value should come in the place of question mark (?) in the following question? (You are not expected to find the exact value) 143.9687 + 897.4534 + (8.893 × 8.893) = ?
10. Direction: In the following question two equation numbered I and II are given. Solve the equation and answer the question: (i) 12x2 - 25x + 7 = 0 (ii) 10y2 - 23y + 6 = 0
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