(Reuters) - BlackRock Inc, the world's largest asset manager, on Tuesday reported a 3.3 percent drop in quarterly profit, as investors shunned its expensive funds and flocked toward low risk, inexpensive funds.Net income attributable to BlackRock fell to $1.05 billion (£802.81 million), or $6.61 per share, in the first quarter ended March 31 from $1.09 billion, or $6.68 per share, a year earlier. (https://bit.ly/2XenIdZ)