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Mashti Cl, What per eent of 150 is 907, IWhat per cet of 5 kg ts 200, What per cent of 2 litres is 250 ml, 7., ECTIVE QUESTIONS, S Find 4, off 3000, W1% of a umber is 72. find the mumber, al 30%, Awhen expressed as a decima, (bi 40%, 10 Amn saves 1% of has monthly income the sives t 3780 per month, what is ls me, income?, (bi 0.008, IL A foothall team wins 7 gmes which 35% of the total gimrs played. How many g, tal 0.08, were played ta all, Swhien eapressed as a percent, (bi 90%, 12. Amit was gven an ocrement of 20% cn his salary If his new salary isa0600, wha wa, salary before the inerement?, lal 83, 13. Sonal aternded her school on 204 days in a hull year. If her attendance is 85%, fod a, mumber of days on which the school was opeed., of a munsber is 9 The number, (bi 90, lal 45, What per cent of 90 is 120, 14 As mcome is 20% less than that of B. By what per cent is B's income more than A, al 75%, ibi 33s, 15. The price of petrol goes up by 10% By how murh per cent must a motorist educe d, eonaumpion of petrol so that the expenditure on i remains unchanged?, 16. The populaton of a town increases by 8% anmually the present population is 54000, What per cent of 10 kg is 250, (h) 5%, lai 25%, what was it a yeat Ag?, 7 40% of?-240, 17. The value of a machine depeectates every year by 20% Mthe present value of the machane le, 160000, what was its valur last year?, lal 60, (bị 600, s 7% of 400 60, 18 An alloy econtains 40% eopper. 32% nickel and rest zine. Find the mass of zine in one kg, the alloy, jal 6, (bi 12, 180% of ?)-2-504, A Balanced diet should contain 12% of proteins. 25% of fats and 63% of carbohydrates a, thild areds 2600 calortes in hts food daily. find calories the amount of each of these b, h daily food intake, 20 Gunpowder contains 75% nitre and 10% sulphur. Find the amount of gunpowler which, carries 9 kg nitre What amount of gupowder would contain 2.5 kg sulphur?, al 400, (b) 480, IA 20% of 800-7, fa 160, (bi 16, . In an examination, Nitin gets 9, What are the maximum marks?, 21 Dsdet 7000 among A. Band Csuch that Agets 50% of what Bgets and Bgris 50% of what, Cgts, lal 75, (b) 150, A mumber is first increased by 1, tal does not change (bi decrea, A A period of4 hours 30 min is w, 22 Find the percentage of pure gld in 22-caral gold, if 24-carat gold is 100% pre., DMDanaco pars tof 24 parts, pore p, la I8, The salery of an ofhcer is inereased by 25% By what per cent shoudd the new salary be, deereed to resiore the orsnal salary?, Ibi 20%, 4 In an examination, 65% of the to, tal aumber of examinees is, la s00, (b) 1000, d - 420 Find