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Recently Posted Content
If 1 + 4 + 7 + 10 + ⋯ + x = 287, find the value of x.
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A child puts one five–rupee coin of her saving in the piggy bank on the first day. She increases her saving by one five–rupee coin daily. If the piggy bank can hold 190 coins of five rupees in all, find the number of days she can continue to put the five–rupee coins into it and find the total money she saved. Write your views on the habit of saving.
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The ratio of the sums of the first m and first n terms of an arithmetic progression is m² : n². Show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
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If the ratio of the sum of the first n terms of two A.Ps is (7n + 1) ∶ (4n + 27), then find the ratio of their 9th terms.
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The minimum age of children to be eligible to participate in a painting competition is 8 years. It is observed that the age of youngest boy was 8 years and the ages of rest of participants are having a common difference of 4 months. If the sum of ages of all the participants is 168 years, find the age of eldest participant in the painting competition.
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