Question : 1) The sum of the prime factor of 63 ? 2) How many right angles are there in 4 complete turns ? 3) If ( K - 8 ) is the HCF of 56 and 84 , then the value of K? 4) Complete the series 1 , 4 , 2 , 8 , 6 , 24 , 22 , 88 , __ ? 5) If one third of the tank hold 60 litres of water , then the quantity of water that half of the tank holds 6) Five electronics devices make a beep after every 30 minutes , 45 minutes , 1 hour 10 minute , 1 hour 15 minutes and 1 hour 45 minutes respectively . If all the devices beeped together at 10 O'clock then will together at what time ? ( Clue : Find LCM ) 7) How many minimum squares must be shaded to make the given figure symmetric ? 8) Find the Area and Perimeter of the given figure 9) Express 15 seconds as a percentage of 4 minutes 15 seconds 10) Find the lowest number which when divided by 112 , 140 and 160 leaves a remainder 5 in each case ( clue LCM + 5 ) 11) A , B and C walk around a circular path . Their
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