Discussion :: Decimal Fraction - General Questions (Q.No.14)
0.25z = 0.40 + 2.10
X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.| Jamal said: (Jul 23, 2010) | |
| I did not understand this problem. So I want to know detail about this. Some one help me out please. | |
| E.Shanthi Krishna said: (Sep 27, 2010) | |
| Hey, the logic what you mentioned here is right but when I'm calculating by year to year basis the answer found to be as 2013. But your answer is 2011. How? |
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| Raj said: (Dec 9, 2010) | |
| In 2011 x commodity will be 8.20 &y will be 7.95 i.e 0.35 paise more than y..... | |
| Vimal said: (Feb 7, 2012) | |
| a+(n-1)d = arithmetic progression 4.20+(n-1).40 = 6.30+(n-1).15 + .0 n-1 = 10; n =11; check the result..is it correct? |
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| Manpreet Singh said: (Jun 17, 2013) | |
| Hey guys there is a very easy trick to solve such type of problems. Now take y as constant at 6.30 and see the difference in the increase i.e., 40-15=25. Now increase .25 into 4.20 till it reaches near 6.30. so, in 2010 it reaches to 6.45. Now, in 2011 increase as given in the question. As .15 into 6.30 = 6.45 and .40 into 6.45 = 6.85 in 2011 so, .40 increased in 2011. |
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| Narasinga Rao said: (Oct 6, 2013) | |
| Logic - 40 ps * 10 yrs = 4 Rs (Rs 4.20 + Rs 4) = 8.20 Rs. 15 ps * 10 yrs = 1.50 Rs/Ps (Rs 6.30 + Rs 1.50)= 7.80 Rs. 8.20 - 7.80 = 40ps. yr 2001 10 yrs ---- yr 2011 Answer. ---- |
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| Moses said: (Feb 10, 2015) | |
| Why calculate using 0.40 as the increase after time z and 40 as given in the question? | |
| Renuka Prasad said: (Aug 21, 2015) | |
| = {(6.30-4.20)+0.40}/0.40-0.15. = 2.50/0.25. = 10 year. |
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| Himanshi Sethi said: (Sep 19, 2015) | |
| @Moses. They just convert paise into rupees. |
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| Sankara Gomathi said: (Mar 2, 2016) | |
| Very clear this answer. Thank you. |
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| Animesh said: (Apr 25, 2017) | |
| I solved by using arithmetic progression. 4.20+(n-1)0.40 = 6.30+(n-1)0.15 + 0.40. And the answer which came is 11 i.e 2012. |
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| Minar said: (May 10, 2017) | |
| 4.20 + (.4*10) = 8.2. 6.30 + (.15*10) = 7.8. How could it be 10 yrs? |
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| Om Singh said: (Dec 25, 2017) | |
| 4.20+.40z=6.30+.15z+.40, .25z=2.10+.40, Z=10. |
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| Monisa said: (Dec 29, 2017) | |
| 40 paise converted to rupees as 0.40 . each year x increase 0.4 and each year Y increase 0.15 so, Year ---------------> X ----- Y 2001 ------------ 4.2 ----- 6.3 2002 ------------4.6 ----- 6.45 2003 ------------5 ----- 6.6 2004 ------------5.4 ----- 6.75 2005 ------------5.8 ----- 6.9 2006 ------------6.2 ----- 7.05 2007 ------------6.6 ----- 7.2 2008 ------------7 ----- 7.35 2009 ------------7.4 -----7.5 2010 ------------ 7.8 -----7.65 2011 ------------8.2 ----- 7.8 Convert it into rupees X Y 820 780 their difference (820-780)=40. therefore ans is 2011. |
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| Jyothi said: (Sep 28, 2018) | |
| Very clear answer, Thanks all. | |
| Gurleen said: (Jul 11, 2020) | |
| 420 + 40x = 630 + 15x + 40. 420 + 40x = 670 + 15x, 25x=250, x = 10years. 2001 + 10 = 2011. |
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