Posted by admin at November 6, 2019

What are the last two digits of the number 7^45 07 23 49 43 Sol: The last two digits of 7^1 are 07.The last two digits of 7^2 are 49.The last two digits of 7^3 are 43.The last two digits of 7^4 are 01.The last two digits of powers of 7 go in a cycle – 07, 49, 43, […]

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The average weight of 39 Students in a class is 23. Among them Sita is the heaviest while Tina is the lightest. If both of them are excluded from the class still the average remains same. The ratio of weight of Sita to Tina is 15:8.Then what is the weight of the Tina? 1. 15 […]

ContinuePosted by admin at June 22, 2019

Compare the rates of two trains, one travelling at 45 km an hour and the other at 45 km an hour and the other at 10 m a second. (a) 4 : 5 (b) 3 : 5 (c) 5 : 4 (d) 5 : 4 (e) None of these A train covers a distance in […]

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Cost Price: The price at which an article is purchased is called cost price (CP) of the acrticle Selling Price The price at which an article is sold is called cost price (SP) of the acrticle Practice Questions Cost of 3 cricket balls = cost of 2 pairs of leg pads cost of 3 pairs […]

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SPEED, TIMES AND DISTANCE Concept of speed, time and distance is based on the formula Speed × time=Distance Speed(s): The rate at which any moving body covers a particular distance is called is speed. Speed= Distance/Time; Time(t): It is the time duration over which the movement has occurred. The unit used for measuring time is […]

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A, B and C invested capitals in the ratio 4 : 5 : 6. At the end of the business term, they received the profits in the ratio 2 : 3 : 4 Find the ratio of time for which they contributed their capitals. (a) 6 : 5 : 8 (b) 6 : 5 : […]

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Math Question set 1 चार बहनों की औसत आयु 7 वर्ष है यदि माँ की आयु शामिल कर दी जाये तो औसत आयु 6 वर्ष बढ जाती है तो माँ की आयु होगी चार व्यक्तियों का औसत वज़न 3 किलोग्राम बढ जाता है यदि 120 किलोग्राम वज़न वाले व्यक्ति के स्थान पर किसी और व्यक्ति […]

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