@@ravasabdivanamal1560 OK 21)given, CP=500, profit=x, difference between y and z = 18 let, mrp=a So, when mrp =SP profit = mrp-CP x= a-500 when discount is 30% SP is y SP= mrp×discount% y= a×(100-30)/100 y= a×70/100 y=7a/10 when successive discount is 20% and 10% SP is z SP= mrp×discount % z= a×(100-20)/100×(100-10)/100 z= a×80/100×90/100 z= 18a/25 By ATQ, z-y=18 18a/25-7a/10=18 18/a-7a/5=90 36a-35a=900 a=900=mrp Now, profit=x=a-500=900-500=400 y=7/10a=7/10×900=630 z=18/25a=18/25×900=648 Hence, x+y+z=400+630+648=1678
@KManishaShree-lg6kg3 ай бұрын
@@ravasabdivanamal1560 likha nhi h bt y and z profit hai. 28)given, CP=500,difference between y and z is 18 let, mrp=a So, when SP=mrp profit =mrp-CP x=a-500 when discount is 30% profit is y profit =SP-CP y=a×(100-30)/100-500 y=a×7/10-500 y=7a-5000/10 when successive discount is 20% and 10% profit is z profit =sp-cp z=>a×(100-20)/100×(100-10)/100}-500 z=a×80/100×90/100-500 z=18a/25-500 z=18a-12500/25 By ATQ , z-y=18 18a-12500/25-(7a-5000)/10=18 18a-12500/5-(7a-5000)/2=90 (36a-12500-35a-12500)/10=90 a=900 Now, x=a-500=900-500=400 y=(7a-5000)/10=(7×900-5000)/10=130 z=(18a-12500)/25=(18×900-12500)/25 =148 Hence, x+y+z=400+130+148=678
@KManishaShree-lg6kg3 ай бұрын
@@ravasabdivanamal1560 21)given, CP=500, profit =x,y and z,difference between y and z is 18 let, mrp=a So,when radio sells on marked price profit =mrp-CP x=a-500_________(i) when discount is 10% profit is y profit =SP-CP Y={a×(100-70)/100} - 500 y=a×7/10-500 y=7a/10-500 y=(7a-5000)/10________(ii) when successive discount is 20% and 10% profit is z z=SP-CP z={a×(100-20)/100×(100-10)/100}-500 z=(a×4/5×9/10)-500 z=18a/25-500 z=(18a-12500)/25_______(iii) By ATQ, z-y=18 (18a-12500)/25-(7a-5000)/10=18 (18a-12500)/5-(7a-5000)/2=90 (36a-12500-35a+12500)/10=90 a=900 put value of a in (i) x=900-500=400 put value of a in (ii) y=(7×900-5000)/10=130 put value of a in (iii) z=(18×900-12500)/25=148 Hence, x+y+z=400+130+148=678
@KManishaShree-lg6kg3 ай бұрын
@@ravasabdivanamal1560Ok
@ankitamishra63553 ай бұрын
Mock drive ka admit card kaha milega
@pujakeshri_yesofficer3 ай бұрын
Mail mei
@ankitamishra63553 ай бұрын
@@pujakeshri_yesofficer nahi mila hai
@vivekkeshri98133 ай бұрын
no di hamesa ki tarah
@sjreya-kc9ov3 ай бұрын
16) x>y 20) x>= y 28) 3000 30 75%
@rajeshkhatri-wr3bn3 ай бұрын
28 ka ans kaise aya 3000 pls reply
@rajeshkhatri-wr3bn3 ай бұрын
Q28 is wrong
@ravasabdivanamal15603 ай бұрын
28 question explain
@sushmithashettysushu94223 ай бұрын
sir, why do you always skip hard questions otherwise you are given that as a home work 🤦
@sushmithashettysushu94223 ай бұрын
Every time you solve simple questions. Everyone can do simplification and number series please its my request please concentrate on arithmetic topics don't skip😢
@mahipkedia37662 ай бұрын
Jisse aagle saal phir s padhne aao tum 😂
@mahipkedia37662 ай бұрын
Selection kabhi ni hoga agr adda se bs pdhoge to ..thanks me later😅
@mahipkedia37662 ай бұрын
They only have interest in selling their batches..