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Answer KeyClass : VISub : MathematicsChapter: Knowing our numbers, Fractions(a) 10(b)1(c) 1(d) 10(e) 5(f) 1(g) 10(a) 9,808,007(b) 706,013,086(c)9,06,009(a) Indian system: 3,00,00,009 Three crore nine International system: 30,000,009 Thirty million nineIndian system: 20,20,560 Twenty lakh twenty thousand five hundred sixty International system: 2,020,560 Two million twenty thousand five hundred sixty (c) Indian system: 11,14,232 Eleven lakh fourteen thousand two hundred thirty two International system: 1,114,232One million one hundred fourteen thousand two hundred thirty two2,99,99,700Total number of required 3-digits numbers : 4Four consecutive even numbers succeeding 68 are 70,72,74 and 76(a) Predecessor :4255(b) Predecessor:2388 (c)Predecessor:6319 Successor: 4257 successor: 2390 successor: 6321Correct answer= 6245×52=324740Wrong answer=6245×62=387190Difference= 62450Wring answer was 62450 greater than the correct answer.Total quantity of curd= 4l 500 ml=4500mlCapacity of glass= 25 mlNumber of glasses required =450025=180(a) CCCLVI (b) MDCLXXII(c)XCVIII(a) XC > XL (b) LXXXIII <XCV(c) DC> CD (d) XCIV> XC(e) XL> XXX624 38 <56 b29>17 In ascending order: 512,58 34,76 234 1724+2512+1313-216=3124+2912+403-136 =31+58+320-5224=35724=1478Let the required number= xA.T.Q. 52-x=32 x=1 ................
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