there are two quantities of milk-amul and sudha having different prices per litre,their volumes being 130 litres and 180 litres respectively.After equal amounts of milk was removed from both,the milk removed from amul was added to sudha and vice versa.The resulting two types of the milk now have the same price.Find the amount of milk drawn out from each type of milk.1)58.662)75.483)81.234)none of these.
The average salary received by 23 employees in an office is Rs.5500. If the average salary of the first ten employees is Rs.6620 and the average salary of the last 12 employees is Rs.4556, what is the salary obtained by the 11th employee?
The average salary received by 23 employees in an office is Rs.5500. If the average salary of the first ten employees is Rs.6620 and the average salary of the last 12 employees is Rs.4556, what is the salary obtained by the 11th employee?Rs.5826Rs.5628Rs.5612Rs.5286
The average salary received by 23 employees in an office is Rs.5500. If the average salary of the first ten employees is Rs.6620 and the average salary of the last 12 employees is Rs.4556, what is the salary obtained by the 11th employee?Rs.5826Rs.5628Rs.5612Rs.5286
although this question has already been discussed here,but i m still not able to grasp it.
Ashish is studying late into the night and id hungry . He opens his mother's snack cupboard without switching on the lights . Knowing that his mother has kept 10 packets of chips and biscuits in the cupboards . He pulls out 3 packets from the cupboards and all of them turn out to be chips . what is the probability that the snack cupboard contains 1 packets of biscuits and 9 packets of chips ?i
approached it like this.number of possible cases 3chips packet 7biscuit 4chips 6 biscuit 5chips 5 biscuits 6chips 4biscuits 7chips 3 biscuits 8chips 2 biscuits 9chips 1biscuits 10 chips 0 biscuits(although i took this case also,because in forums everyone was taking it,but when it is given 10 packets of chips and biscuits,then i think ATLEAST 1 biscuits packet must be there.isn't it?? )
answer is Probability = C(9, 3)/{C(10, 3) + C(9, 3) + .... + C(3, 3)} = 84/330 = 14/55
my answer was 1/8,because above there are total 8 cases.can someone explain WHY ANSWER IS NOT 1/8 ??
A jewelry shop has announced a discount in price by 20%. How many rings costing Rs. 500 each should Kamla purchase to avail a total discount of Rs.500?
A jewelry shop has announced a discount in price by 20%. How many rings costing Rs. 500 each should Kamla purchase to avail a total discount of Rs.500?7654Approach??
i think answer is 5 rings
20% of 500=100rs
now he needs 2 buy 5 rings 2 avail a discount of 500 rs
A jewelry shop has announced a discount in price by 20%. How many rings costing Rs. 500 each should Kamla purchase to avail a total discount of Rs.500?7654Approach??
although this question has already been discussed here,but i m still not able to grasp it.Ashish is studying late into the night and id hungry . He opens his mother's snack cupboard without switching on the lights . Knowing that his mother has kept 10 packets of chips and biscuits in the cupboards . He pulls out 3 packets from the cupboards and all of them turn out to be chips . what is the probability that the snack cupboard contains 1 packets of biscuits and 9 packets of chips ?iapproached it like this.number of possible cases3chips packet 7biscuit4chips 6 biscuit5chips 5 biscuits6chips 4biscuits7chips 3 biscuits8chips 2 biscuits9chips 1biscuits10 chips 0 biscuits(although i took this case also,because in forums everyone was taking it,but when it is given 10 packets of chips and biscuits,then i think ATLEAST 1 biscuits packet must be there.isn't it?? )answer is Probability = C(9, 3)/{C(10, 3) + C(9, 3) + .... + C(3, 3)} = 84/330 = 14/55my answer was 1/8,because above there are total 8 cases.can someone explain WHY ANSWER IS NOT 1/8 ??
Ah good old iift question...well good new i mean to say :P. Basically it involves application of baye's theorem. The reason they have taken done 3c3 4c3 etccc..is because the question is because the number of cases of him taking out the three chips will not be uniform as the number of chips changes. The event space has been modified.The denominator will vary, so its essentially asking thuis: (probability of ashish taking out 3 chips when there are 9 chips packets and 1 biscuit)/ (probability of asish takingout 3 chips packets when there are >=3 chips packets)
A shopkeeper mixed coffee and chikori powder in the ratio of 5:3 in a jar of 40 Kgs. How much chikori powder should he mix to these 40 kgs. To make the ratio 1:1?
A shopkeeper mixed coffee and chikori powder in the ratio of 5:3 in a jar of 40 Kgs. How much chikori powder should he mix to these 40 kgs. To make the ratio 1:1?
A music shop sells cassettes of English music, Hindi film songs and Telegu film songs at a ratio of 2:4:5. If in the month of June the shop sold 452 cassettes of Hindi film songs, the number of cassettes of Telegu film songs is??
A music shop sells cassettes of English music, Hindi film songs and Telegu film songs at a ratio of 2:4:5. If in the month of June the shop sold 452 cassettes of Hindi film songs, the number of cassettes of Telegu film songs is??
