Related Questions

Fifteen percent of the people in Chittagong have unlisted phone numbers. If you select 300 names at random from the phone directory, what is the expected number of people who will have an unlisted phone unmber?
ক 15
খ 145
গ 300
ঘ None of these
Based on the information below, how much did a certain telephone call cost? 1. The call lasted 1 minute 27 seconds 2. The cost for the first 30 second unit is Tk. 1.80, call duration more than 30 seconds costs Tk. 0.90 per 30 second unit 3. Any call duration less than 30 seconds is rounded up to the nearest 30-second unit.
ক Tk. 1.80
খ Tk. 2.61
গ Tk. 2.70
ঘ Tk. 3.51
If the cost of a long-distance phone call is C taka for the first minute and (2/3) C taka for each additional minute, what is the cost, in taka, of a 10 minute call of this type?
ক 5/3c
খ 6c
গ 20/3c
ঘ 7c
If the cost of a long distance phone call in C taka for the first minute and (2/3) C taka for each additional three minute. what is the cost in taka of a ten minute call of this type?
ক 5c/3
খ 6c
গ 3c
ঘ 7c
Total number of telephone calls is 'n' call charge is Tk. 'p' per call. Then total call charge is:
ক ( n + p)
খ (n-p)
গ (n *p)
ঘ (none of them)
Total number of telephone calls is ‘n’, call charge is TK. ‘p’ per call. Then total call charge is:
ক (n+p)
খ (n-p)
গ np
ঘ none of then
Babu's secrtary .... to tell him he had a phone call.fill in the gap with the appropriate phrase-
ক cut out
খ cut in
গ took in
ঘ took out
I felt as though I was sitting on pins and needles all night, while I waited for the phone call. Here, 'sitting on pins and needles' means___.
ক was nervous
খ relaxed
গ uncomfortable
ঘ angry
`I shall call you on Friday. Here 'call' is widely used as--
ক verb
খ Adverb
গ Adjective
ঘ Auxiliary verb
Mind your won business, Here 'mind' is------.
ক None
খ Verb
গ Conjuection
ঘ Adverb

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